Item 1.          Business

Overview

Endo Health Solutions Inc., (which we refer to herein as "Endo", the "Company", "we", "our" or "us") is a specialty healthcare company focused on branded and generic pharmaceuticals and devices. We aim to be the premier partner to healthcare professionals and payment providers, delivering an innovative suite of complementary branded and generic drugs and devices to meet the needs of patients in areas such as pain management, urology, oncology and endocrinology.

We regularly evaluate and, where appropriate, execute on opportunities to expand through acquisition of products and companies in areas that will serve patients and customers and that Endo believes will offer above average growth characteristics and attractive margins. In particular, Endo looks to continue to enhance its product lines by acquiring or licensing rights to additional products and regularly evaluating selective acquisition and license opportunities. Such acquisitions or licenses may be effected through the purchase of assets, joint ventures and licenses or by acquiring other companies.

On December 28, 2013, Endo's Board of Directors (the Board) approved a plan to sell its HealthTronics business and on January 8, 2014, the Company entered into a definitive agreement to sell the business. We closed the sale of our HealthTronics business on February 3, 2014. In June 2011, we acquired American Medical Systems Holdings, Inc. (AMS or American Medical Systems), a leading provider of devices and therapies for treating male and female pelvic health conditions. The acquisition of AMS strengthens our leading core urology franchise and expands our presence in the medical devices market. In November 2010, we acquired Generics International (US Parent), Inc. (doing business as Qualitest Pharmaceuticals), a leading U.S. based privately held generics company and currently the sixth largest U.S. generics company, as measured by prescriptions filled. Qualitest Pharmaceuticals is focused on cost competitive, high quality manufactured products with cost advantages or with high barriers to entry such as complex formulation, regulatory or legal challenges or difficulty in raw material sourcing. We continue to operate across our diversified businesses in three key segments, Endo Pharmaceuticals, Qualitest and AMS, in key therapeutic areas including pain management, urology, oncology and endocrinology. Our segments are further discussed in Note 6. Segment Results in the Consolidated Financial Statements included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" and in Part II, Item 7. of this report "Management's Discussion and Analysis of Financial Condition and Results of Operations" under the caption " Business Segment Results Review ".

We have a portfolio of branded pharmaceuticals that includes established brand names such as Lidoderm ^® , Opana ^® ER, Voltaren ^® Gel, Percocet ^® , Fortesta ^® Gel, Frova ^® , Supprelin ^® LA, Valstar ^® and Vantas ^® . Endo Pharmaceuticals comprised approximately 53% of our total revenues in 2013 , with 23% of our revenues coming from Lidoderm ^® . Our non-branded Qualitest portfolio, which accounted for 28% of total revenues in 2013 , currently consists of products primarily focused in pain management through a differentiated portfolio of controlled substances and liquids. Our AMS segment focuses on providing technology solutions to physicians treating men’s and women’s pelvic health conditions and operates in the following business lines: men’s health, women’s health, and benign prostatic hyperplasia (BPH or prostate health) therapy. AMS accounted for 19% of total revenues in 2013 . We generated total 2013 revenues of $2.6 billion .

Financial information presented herein reflects the operating results of AMS from June 18, 2011.

We were incorporated under the laws of the State of Delaware on November 18, 1997 and have our principal executive offices at 1400 Atwater Drive, Malvern, Pennsylvania 19355 (telephone number: (484) 216-0000 ).

Our Strategy

Our strategy is focused on continuing our progress in becoming a leading global specialty healthcare company. Through a lean and efficient operating model, we are committed to serving patients and customers while continuing to innovate products that make a difference in the lives of its patients. We strive to maximize shareholder value by adapting to market realities and customer needs.

We are committed to driving organic growth at attractive margins by improving execution, optimizing cash flow and leveraging our strong market position, while maintaining a streamlined cost structure throughout each of our businesses. Specific areas of management's focus in each of our segments include:

We remain committed to R&D across each business unit with a particular focus on development capabilities and near-term revenue generating assets. We also seek to identify incremental growth opportunities through product licensing and development.

In addition to a focus on organic growth drivers, we are also actively pursuing accretive acquisitions that offer attractive cost synergies, enhance our strategic position and accelerate future growth.

Since June 2013, we have announced the following acquisitions:

See Note 23. Subsequent Events in the Consolidated Financial Statements included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" and Part II, Item 7. of this report "Management's Discussion and Analysis of Financial Condition and Results of Operations" for further discussion.

Our Competitive Strengths

To successfully execute our strategy, we must continue to capitalize on our following core strengths:

Proactive diversification of our business to become a leading global specialty healthcare company. In light of the evolving healthcare industry, we executed a number of corporate acquisitions during the three years ended December 31, 2013 to diversify our business and become a leading specialty healthcare company that includes both branded and generic prescription drugs, as well as medical devices. Endo regularly evaluates and, where appropriate, executes on opportunities to expand through acquisitions of products and companies in areas that will serve patients and customers and that Endo believes will offer above average growth characteristics and attractive margins. In particular, Endo looks to continue to enhance its product lines by acquiring or licensing rights to additional products and regularly evaluating selective acquisition and license opportunities. Such acquisitions or licenses may be effected through the purchase of assets, joint ventures and licenses or by acquiring other companies.

As a result of recent strategic actions combined with strategic investments in our core business, we have redefined our position in the healthcare marketplace and successfully reduced the revenue concentration of Lidoderm ^® , which contributed approximately 23% of our business’ revenue in 2013 , compared to 33% in 2012 . Our acquisitions of AMS and Qualitest Pharmaceuticals have also contributed to our diversification. The acquisition of Qualitest Pharmaceuticals has enabled us to gain critical mass in our generics business. Through AMS, we manufacture medical devices primarily for the urology community.

Established portfolio of branded products. We have assembled a portfolio of branded prescription products to treat and manage pain and conditions in urology, oncology and endocrinology. Our branded products include: Lidoderm ^® , Opana ^® ER, Voltaren ^® Gel, Percocet ^® , Frova ^® , Fortesta ^® Gel, Supprelin ^® LA, Vantas ^® and Valstar ^® . For a more detailed description of each of our products, see “ Products Overview .”

Focused branded pipeline. As a result of our focused research and development efforts, we believe we have a promising development pipeline and are well-positioned to capitalize on our core development products. Currently, our core development pipeline consists of one New Drug Application (NDA) filed with the U.S. Food and Drug Administration (FDA) and one product in Phase III trials. We have also initiated development efforts for medical devices and have multiple programs at concept and

development stages across urology, uro-oncology, endocrinology and urogynocology. For a more detailed description of our development pipeline, see “ Select Products in Development .”

Research and development expertise. Our research and development efforts are focused on the development of a balanced, diversified portfolio of innovative and clinically differentiated products. We are continuously seeking opportunities that deepen our presence in the pain management area as well as in the areas of oncology, urology and endocrinology. We will continue to capitalize on our core expertise with analgesics and expand our abilities to pursue other therapeutic areas. Through our acquisition of AMS., we have expanded our expertise in the development of medical devices. Through our acquisition of Qualitest Pharmaceuticals, we have increased our efforts to seek out and develop generic products with complex formulations and high barriers to entry. We remain committed to research and development across each business unit with a particular focus on development capabilities and near-term revenue generating assets. At December 31, 2013 , our research and development and regulatory affairs staff consisted of 257 employees, based primarily in Minnetonka, Minnesota, San Jose, California, Huntsville, Alabama and at our corporate headquarters in Malvern, Pennsylvania. Our research and development expenses were $142.5 million , $219.1 million and $179.8 million in 2013 , 2012 and 2011 , respectively, including upfront and milestone payments of $11.4 million , $57.9 million and $19.1 million , respectively.

We have assembled an experienced and multi-disciplined research and development team of scientists and technicians with development expertise, medical device design and development expertise and broad experience in working with the FDA. To supplement our internal efforts, we engage the services of various independent research organizations, physicians and hospitals to conduct and coordinate our preclinical and clinical studies to establish the safety and effectiveness of new products.

Targeted sales and marketing infrastructure. We market our branded products directly to physicians through a sales force of over 600 individuals in the pharmaceutical product and device markets. As of December 31, 2013, this sales force consisted of 160 pharmaceutical sales representatives focusing primarily on pain products, 119 sales representatives focusing primarily on bladder and prostate cancer products, 32 medical center representatives focusing on the treatment of central precocious puberty and four account executives focusing on managed markets customers. We also had 306 sales representatives focusing primarily on devices, of which 106 were located outside the United States. We market our products and services to primary care physicians and specialty physicians, including those specializing in pain management, orthopedics, neurology, rheumatology, surgery, anesthesiology, urology and pediatric endocrinology. Our sales force also targets retail pharmacies and other healthcare professionals throughout the U.S. We distribute our products principally through independent wholesale distributors, but we also sell directly to retailers, clinics, government agencies, doctors and retail and specialty pharmacies. Our marketing policy is designed to assure that products and relevant, appropriate medical information are immediately available to physicians, pharmacies, hospitals, public and private payers, and appropriate healthcare professionals throughout the U.S. We work to gain access to healthcare authority, pharmacy benefit managers and managed care organizations’ formularies (lists of recommended or approved medicines and other products), including Medicare Part D plans and reimbursement lists by demonstrating the qualities and treatment benefits of our products within their approved indications.

Expanding focus on generic products. Our Qualitest segment has approximately 46 Abbreviated New Drug Applications (ANDAs) under active FDA review in multiple therapeutic areas, including pain management, urology, central nervous system (CNS) disorders, immunosuppression, oncology, women’s health and hypertension, among others. We develop generic products including those that involve significant barriers to entry such as complex formulation, regulatory or legal challenges or difficulty in raw material sourcing. We believe products with these characteristics will face a lesser degree of competition and therefore provide longer product life cycles and higher profitability than commodity generic products. Our business model continues to focus on being the lowest-cost producer of products in categories with high barriers to entry and lower levels of competition. Our Qualitest segment is focused in categories where there are fewer challenges from low-cost operators in markets such as China and India, with approximately 36% of our product portfolio being comprised of controlled substances, which cannot be manufactured off-shore and imported into the U.S. In addition, approximately 8% of our product portfolio is made up of liquids, which are uneconomical to ship into the U.S. We expect to continue to improve our overall profitability by optimizing our portfolio for high volume and growth while strengthening our U.S. generics competitive position, product pipeline, portfolio and capabilities.

Manufacturing and distributing medical devices. Through our AMS segment, we manufacture medical devices for various pelvic health disorders. Specifically, the AMS segment includes a diverse product portfolio that treats men’s incontinence, erectile dysfunction, benign prostatic hyperplasia, women’s incontinence and pelvic floor repair. These devices strengthen our leading core urology franchise, where we remain focused on expanding the markets for our products because the portion of afflicted patients seeking treatment remains relatively low. When patients seek treatment, they generally begin with options that will be as minimally invasive as possible, such as pharmaceutical therapies. Also, when patients initially seek treatment, their first physician contact is usually with a general practitioner and not with a surgical specialist. If less invasive options have proven unsuccessful, patients and their physicians may consider surgery as a solution. Sales of these products benefit from an aging population with a desire to maintain a high quality of life, the expanding availability of safe and effective treatments, minimally invasive solutions and increasing patient and physician awareness of these treatments.

Significant cash flow. We have historically generated significant cash flow from operating activities due to a unique combination of strong brand equity, attractive margins and low capital expenditures. For the year ended December 31, 2013 , we generated $298.5 million of cash from operations. We expect that sales of our currently marketed products and devices and will allow us to continue to generate significant cash flow from operations in the future. We maintain ample liquidity which gives us flexibility to make strategic investments in our business. As of December 31, 2013 , we had $529.6 million of cash and marketable securities, up to $500.0 million of availability under the Revolving Credit Facility, and availability of up to $500.0 million of additional revolving or term loan commitments.

Experienced and dedicated management team. Our senior management team has a proven track record of building businesses through licensing and acquisitions. Their expertise has contributed to identifying and consummating such acquisitions. Members of our management team have consummated two acquisitions since June 2013 (Boca and Paladin) and have significantly increased the market value of the Company. As a result of several successful product launches and our strategic acquisitions, we have grown our total revenues from $108.0 million in 1998 to over $2.6 billion in 2013 .

Our Areas of Focus

Pharmaceutical Products Markets

Pain Management Market

According to IMS Health data, the total U.S. market for pain management pharmaceuticals, excluding over-the-counter products, totaled $28.8 billion in 2013 . This represents an approximate 8% compounded annual growth rate since 2009 . Our primary area of focus within this market is analgesics and, specifically, opioid analgesics. In 2013 , analgesics were the third most prescribed medication in the U.S. with over 304 million prescriptions written for this classification.

Opioid analgesics is a segment that comprised approximately 76% of the total analgesic prescriptions for 2013 and represented almost 53% of the overall U.S. prescription pain management market. Total U.S. sales for the opioid analgesic segment were $8.3 billion in 2013 , representing a compounded annual growth rate of 1% since 2009 . With the launch of Voltaren ^® Gel in 2008 , Endo gained presence in the osteoarthritis market competing in the analgesic non-narcotic and anti-arthritic classes which together had approximately 206 million prescriptions written in 2013 , representing 47% of the U.S. prescription pain management market. The U.S. sales for the analgesic non-narcotic and anti-arthritic markets were $20.4 billion with a compound annual growth rate of 11% since 2009 .

Opioid analgesic products are used primarily for the treatment of pain associated with orthopedic fractures and sprains, post herpetic-neuralgia, back injuries, migraines, joint diseases, cancer and various surgical procedures. The growth in this segment has been primarily attributable to:

Urology, Endocrinology and Oncology Markets

Through our 2009 acquisition of Indevus Pharmaceuticals, Inc., as well as other business development activities, Endo entered the urology, endocrinology and oncology markets, specifically the prostate cancer therapeutic area with Vantas ^® , the bladder oncology space with Valstar ^® , and the central precocious puberty therapeutic area with Supprelin ^® LA. With our early 2011 launch of Fortesta ^® Gel, which was approved by the FDA in December 2010 for the treatment of hypogonadism, we entered the testosterone replacement therapy (TRT) market. We anticipate increasing our presence in this market through our development product Aveed ^TM . As a result of our acquisition of AMS, we now offer a broad array of medical devices that deliver innovative medical technology solutions to physicians treating male incontinence, erectile dysfunction, female incontinence, pelvic floor repair and BPH. The markets for our AMS segment's products are discussed below under the caption " Medical Device Markets ."

Central Precocious Puberty (CPP)— In a recent study, the incidence of CPP reported from national registries in the European Union subdivided by gender and age at diagnosis was approximately 1 per 10,000 in girls who were younger than 4 years, thereafter gradually rising to 8 per 10,000 for girls aged 5 to 9 years. The incidence in boys younger than 8 years was approximately 1 per 10,000 . Recent market research indicates that girls in the U.S. are physically maturing at an earlier age than they did 30 years ago, and the number of girls diagnosed with precocious puberty is on the rise. In the U.S., 6,000 patients are estimated to have CPP with approximately 2,000 diagnosed annually. CPP is treated by pediatric endocrinologists in the U.S. where there are approximately 790 practicing pediatric endocrinologists.

Prostate cancer— Prostate cancer is the most common cancer for men and the second leading cause of cancer deaths in men. According to the American Cancer Society, every year approximately 240,000 men in the U.S. are diagnosed with prostate cancer and 30,000 die from this disease.

Bladder cancer— There are more than 500,000 people in the U.S. alive with a history of bladder cancer, which is the third most common cancer among men and the eleventh most common among women in the U.S. The American Cancer Society estimated approximately 74,960 new cases of bladder cancer and 15,580 deaths from this disease in the U.S. in 2013. The 2014 estimate is expected to be similar. Rates of bladder cancer are expected to increase due to the aging population; nearly 90% of cases of bladder cancer are diagnosed in people age 55 or older. The number of patients in the total non-invasive bladder cancer population will thus increase due to the rising incidence as well as high recurrence rates, leading to a substantial prevalent population.

Bacillus Calmette-Guérin (BCG)-refractory carcinoma in situ (CIS) bladder cancer— CIS of the urinary bladder is a rare form of bladder cancer, affecting about 7 of every 100 patients diagnosed with bladder cancer. Standard treatment of CIS of the urinary bladder is transurethral resection of the bladder tumor, followed by one or two courses of immunotherapy with the vaccine BCG. About 50% of patients will become refractory to BCG therapy. Valstar ^® intravesical therapy is the only FDA-approved treatment of carcinoma in situ of the urinary bladder in patients who are refractory to BCG immunotherapy when cystectomy (bladder removal) is not an option.

Testosterone replacement overview— In the U.S. alone, it is estimated that 13.8 million men have low testosterone levels; however, only about 9% are currently being treated. Hypogonadism, or low testosterone, is under diagnosed and under treated. Factors contributing to this include a lack of screening for low testosterone and the perceived risk of prostate cancer associated with current treatment strategies. In the U.S., TRT sales have dramatically increased from approximately $809.0 million in 2008 to over $2.3 billion in 2013 , representing a compounded annual growth rate of 24% since 2008 .

Medical Device Markets

Male incontinence— We estimate over 50 million men worldwide suffer from urinary incontinence, the involuntary release of urine from the body. Male incontinence may be managed with a catheter and leg bag to collect urine, or with pads and diapers to absorb the leaks. These measures are far from ideal, as they come with recurring replacement product costs, the potential for infection, embarrassing leaks and odor, a significantly diminished quality of life, and may even result in the need for managed care.

Erectile dysfunction— Erectile dysfunction is the inability to achieve or maintain an erection sufficient for sexual intercourse. It is most often caused by vascular disease, complications from diabetes, or prostate surgery which can damage both nerves and arteries necessary for erectile function. This disease can also be caused by spinal cord injury, and may have a psychogenic component. We estimate that erectile dysfunction may affect over 400 million men and their partners around the world. The primary treatment for erectile dysfunction is the class of drugs referred to as PDE-5 inhibitors. Approximately 30% of patients using these drugs do not have a positive response. If such drugs are not effective, the patient may elect to have an implant of one of our penile prosthesis products, which provide consistent, reliable solutions.

Female incontinence— We estimate over 500 million women worldwide suffer from urinary or fecal incontinence. These diseases can lead to debilitating medical and social problems, ranging from embarrassment to anxiety and depression. There are three types of urinary incontinence: stress, urge, and mixed incontinence (a combination of stress and urge). While stress incontinence is generally caused by a weakening of the pelvic floor and resultant hypermobility of the urethra, urge incontinence is more complex and currently not as well understood. Pads and diapers are often used to contain and absorb leaks, and may be acceptable for controlling mild incontinence. Drug therapy and electrical nerve stimulation are currently used to treat urge incontinence. Incontinence may be treated through exercises to strengthen pelvic floor muscles, or through the injection of collagen or some other bulking agent into the wall of the urethra or bladder neck to narrow the passage. Surgical solutions are generally recommended only when these other therapies are not effective. Our current products in the market treat stress incontinence, which generally results from a weakening of the tissue surrounding the bladder and urethra which can be a result of pregnancy, childbirth and aging.

Pelvic floor repair— Pregnancy, labor, and childbirth are some of the primary causes of pelvic floor prolapse and other pelvic floor disorders. Prolapse and other pelvic floor defects may be treated with a variety of open, laparoscopic, and transvaginal surgeries. We estimate over 400,000 procedures are performed annually around the world to repair some form of pelvic floor prolapse in women. These procedures have historically been performed through the use of suture and graft materials designed for other surgical applications. AMS offers less invasive solutions for pelvic floor repair.

Prostate health— AMS's products can be used to relieve restrictions on the normal flow of urine from the bladder caused by bladder obstructions, generally the result of BPH or bulbar urethral strictures. Symptoms of BPH include increased urination frequency, sudden urges to urinate, and weak urine flow. More than 70% of men over age 60 have some symptoms of BPH. Prior to the development of less invasive therapies, the conventional treatment for those experiencing a physical obstruction of the prostatic urethra was a surgical removal of the prostatic tissue performed under general anesthesia, known as a transurethral resection of the

prostate (TURP). We offer men an alternative to a TURP, using laser therapy designed to reduce the comorbidities associated with TURP. This laser system has paved the way for creating a new standard of care in the treatment of BPH.

For those men not yet to the point of urethral obstruction, but for whom symptomatic relief is desired, a less-invasive tissue ablation technique can be performed in a physician’s office using microwave energy delivered to the prostate. The market for an office-based therapy for BPH has remained relatively flat, at approximately 100,000 men treated annually, partially due to the continued adoption of laser delivered BPH treatments.

Products Overview

Endo Pharmaceuticals

The following table summarizes select products in our Endo Pharmaceuticals portfolio:

Lidoderm ^® . Lidoderm ^® (lidocaine patch 5%) was launched in September 1999. A topical patch product containing lidocaine, Lidoderm ^® was the first FDA-approved product for the relief of the pain associated with post-herpetic neuralgia, a condition thought to result after nerve fibers are damaged during a case of Herpes Zoster (commonly known as shingles). Although Lidoderm ^® continues to receive a certain degree of protection from Orange Book-listed patents for, among other things, a method of treating post-herpetic neuralgia and the composition of the lidocaine-containing patch, in May 2012, we entered into a settlement and license agreement with Watson Pharmaceuticals, Inc. (now doing business as Actavis, Inc. and referred to herein as Watson or Actavis) which allowed Watson to launch its lidocaine patch 5%, a generic version of Lidoderm ^® on September 15, 2013. This agreement is further discussed in Note 14. Commitments and Contingencies in the Consolidated Financial Statements , included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" . Although the Company believes it has successfully contracted with certain Managed Care providers and government agencies, we do expect future net sales of Lidoderm ^® to continue to be impacted due to generic competition, resulting in additional decreases in Lidoderm ^® net sales. For the years ended December 31, 2013 , 2012 and 2011 , Lidoderm ^® net sales were $603.0 million , $947.7 million and $825.2 million , respectively. Lidoderm ^® accounted for approximately 23% of our 2013 total revenues.

Opana ^® ER . Opana ^® ER was launched during the second half of 2006 and had shown prescription growth since its launch until the 2012 supply disruption, which caused some patients to switch to other pain relief products. Opana ^® ER is indicated for the relief of moderate-to-severe pain in patients requiring continuous, around-the-clock opioid treatment for an extended period of time. Opana ^® ER represents the first drug in which oxymorphone is available in an oral, extended-release formulation and is available in 5 mg, 7.5 mg, 10 mg, 15 mg, 20 mg, 30 mg and 40 mg tablets. In December 2011, the FDA approved our formulation of Opana ^® ER designed to be crush-resistant, which is called Opana ^® ER (oxymorphone hydrochloride) Extended-Release Tablets with INTAC ^® technology. This formulation of Opana ^® ER with INTAC ^® technology has the same dosage strengths, color and packaging and similar tablet size as original Opana ^® ER. Endo transitioned to the crush-resistant formulation in March 2012 upon successfully accelerating production of this formulation. While we believe Endo's ongoing commercial efforts, which include direct and indirect sales efforts, coupon programs, education and promotion within targeted customer channels, have contributed positively to the uptake of our crush-resistant formulation, revenues since the transition have not returned to historical pre-transition levels. 2012 revenues included the favorable effects of wholesaler restocking efforts to transition to the crush-resistant formulation of Opana ^® ER, which did not reoccur during the comparable 2013 periods. In addition, Impax and Actavis launched generic versions of the non-crush-resistant formulation Opana ^® ER on January 2, 2013 and September 12, 2013, respectively, negatively impacting revenues. Opana ^® ER net sales were $227.9 million ,

$299.3 million and $384.3 million for the years ended December 31 , 2013 , 2012 and 2011 , respectively. Opana ^® ER accounted for approximately 9% of our 2013 total revenues.

Voltaren ^® Gel. We launched Voltaren ^® Gel (diclofenac sodium topical gel 1%) in March 2008 upon closing of the license and supply agreement with Novartis AG and Novartis Consumer Health, Inc. Voltaren ^® Gel received regulatory approval in October 2007 from the FDA, becoming the first topical prescription treatment for use in treating pain associated with osteoarthritis and the first new product approved in the U.S. for osteoarthritis since 2001. Voltaren ^® Gel was granted marketing exclusivity in the U.S. as a prescription medicine until October 2010. It is the first prescription topical osteoarthritis treatment to have proven its effectiveness in both the knees and joints of the hands through clinical trials. Voltaren ^® Gel delivers effective pain relief with a favorable safety profile as its systemic absorption is 94% less than the comparable oral diclofenac treatment. For the years ended December 31, 2013 , 2012 and 2011 , net sales of Voltaren ^® Gel were $170.8 million , $117.6 million and $142.7 million , respectively. Voltaren ^® Gel accounted for approximately 7% of our 2013 total revenues.

Percocet ^® . Launched in 1976, Percocet ^® (oxycodone hydrochloride and acetaminophen USP) Tablets CII is approved for the treatment of moderate-to-moderately severe pain. The Percocet ^® family of products had net sales of $105.8 million , $103.4 million and $104.6 million for the years ended December 31 , 2013 , 2012 and 2011 , respectively. The Percocet ^® franchise accounted for approximately 4% of our 2013 total revenues.

Frova ^® . We began shipping Frova ^® (frovatriptan succinate) tablets upon closing of the license agreement with Vernalis in mid-August 2004. Frova ^® is indicated for the acute treatment of migraine headaches in adults. We believe that Frova ^® has differentiating features from other migraine products, including the longest half-life in the triptan class and a very low reported migraine recurrence rate in its clinical program. For the years ended December 31 , 2013 , 2012 and 2011 , Frova ^® net sales were $60.9 million , $61.3 million and $58.2 million , respectively.

Fortesta ^® Gel. Fortesta ^® Gel is a patented two percent (2%) testosterone transdermal gel and is a treatment for men suffering from hypogonadism, also known as low testosterone (Low T). The precision-metered dose delivery system can be accurately customized and adjusted to meet individual patient needs with the appropriate dose. In August 2009, we entered into a License and Supply Agreement (the ProStrakan Agreement) with Strakan International Limited, a subsidiary of ProStrakan Group plc (ProStrakan), for the exclusive right to commercialize Fortesta ^® Gel in the U.S. Fortesta ^® Gel was approved by the FDA in December 2010. We launched Fortesta ^® Gel in the first quarter of 2011. Net sales of Fortesta ^® Gel were $65.9 million , $30.6 million and $14.9 million for the years ended December 31 , 2013 , 2012 and 2011 , respectively.

Supprelin ^® LA. Supprelin ^® LA (histrelin acetate) was launched in the U.S. in June 2007. Supprelin ^® LA is a soft, flexible 12-month hydrogel implant based on our hydrogel polymer technology that delivers histrelin acetate, a gonadotropin releasing hormone (GnRH) agonist and is indicated for the treatment of CPP in children. CPP is the early onset of puberty in young children resulting in the development of secondary sex characteristics and, if left untreated, can result in diminished adult height attainment. The development of these secondary sex characteristics is due to an increase in the secretion of sex hormones, the cause of which is unknown. We market Supprelin ^® LA in the U.S. through a specialty sales force primarily to pediatric endocrinologists. For the years ended December 31 , 2013 , 2012 and 2011 , Supprelin ^® LA net sales were $58.3 million , $57.4 million and $50.1 million , respectively.

Valstar ^® . We launched Valstar ^® (valrubicin) in September 2009. Valstar ^® is a sterile solution for intravesical instillation of valrubicin, a chemotherapeutic anthracycline derivative. Valstar ^® is indicated for intravesical therapy of bacillus Calmette-Guerin (BCG)-refractory carcinoma in situ (CIS) of the urinary bladder in patients for whom immediate cystectomy would be associated with unacceptable morbidity or mortality. Net sales of Valstar ^® were $23.7 million , $27.1 million and $21.5 million for the years ended December 31 , 2013 , 2012 and 2011 , respectively.

Vantas ^® . Vantas ^® (histrelin acetate) was launched in the U.S. in November 2004. Vantas ^® is a soft, flexible 12-month hydrogel implant based on our hydrogel polymer technology that delivers histrelin acetate, a GnRH agonist and is indicated for the palliative treatment of advanced prostate cancer. Net sales of Vantas ^® were $13.2 million , $17.5 million and $19.0 million for the years ended December 31 , 2013 , 2012 and 2011 , respectively, primarily in the U.S.

Hydrogel Polymer Implant. The hydrogel polymer implant is a subcutaneous, retrievable, non-biodegradable, hydrogel reservoir drug delivery device designed to provide sustained release of a broad spectrum of drugs continuously, at constant, predetermined rates. This technology serves as the basis for two of our currently marketed products: Vantas ^® and Supprelin ^® LA.

The hydrogel polymer implant is the only soft, flexible, reservoir-based drug delivery system available for parenteral administration. Our implant is designed for easy, in-office physician insertion under local anesthesia. The hydrogel polymer compositions possess flexible, tissue-like characteristics providing excellent biocompatibility and patient comfort. The hydrogel polymer implant delivers drugs at zero-order kinetics and the duration of delivery can be predetermined over a range of times.

Other. The balance of our other branded portfolio consists of a number of products, each of which accounted for 1% or less of our total revenues in 2013 .

When a branded pharmaceutical product is no longer protected by any relevant patents, normally as a result of a patent’s expiration, or by other, non-patent market exclusivity, third parties have an opportunity to introduce generic counterparts to such branded product. Generic pharmaceutical products are therapeutically equivalent to their brand-name counterparts and are generally sold at prices significantly less than the branded product. Accordingly, generic pharmaceuticals may provide a safe, effective and cost-effective alternative to users of branded products.

Our generic products are sold across multiple therapeutic categories, with pain management being the largest, and in various dosage forms including solids, semi-solids and liquids. Qualitest's top 15 products provided revenues of $415.9 million , $376.1 million and $294.9 million in 2013 , 2012 and 2011 , respectively.

Through our AMS segment, we offer a diverse product portfolio that treats men’s and women’s pelvic health conditions, including:

AMS 700 MS ^TM Series. The AMS 700 MS ^TM Series are market leading penile implants to treat erectile dysfunction, which is the inability to achieve or maintain an erection sufficient for sexual intercourse. This service contains a complete range of more naturally functioning inflatable prostheses than earlier generations of the product and is distinguished from other penile implants with the use of the InhibiZone ^® antibiotic coating. InhibiZone ^® is intended to reduce the rate of revision surgery due to surgical infections and this claim was approved by the FDA in July 2009. AMS 700 MS ^TM revenue accounted for approximately 5% of our total revenues in 2013 compared to 4% in 2012 .

AMS 800 ^® Artificial Urinary Sphincter. The AMS 800 ^® artificial urinary sphincter is designed for the treatment of moderate to severe male urinary incontinence, the involuntary release of urine from the body. It includes an inflatable urethral cuff to restrict flow through the urethra and a control pump that allows the patient to discreetly open the cuff when he wishes to urinate. AMS 800 ^® revenue accounted for approximately 4% of our total revenues in both 2013 and 2012 .

GreenLight ^TM XPS Laser System. The GreenLight ^TM XPS laser system is used to relieve restrictions on the normal flow of urine from the bladder caused by bladder obstructions, generally the result of BPH or bulbar urethral strictures. This therapy offers men experiencing a physical obstruction of the prostatic urethra an alternative to TURP. The GreenLight ^TM photovaporization of the prostate is designed to reduce the comorbidities associated with TURP. The GreenLight ^TM XPS and MoXy ^TM Liquid Cooled Fiber system provide shorter treatment times with similar long-term results compared to other laser systems. The GreenLight ^TM laser system offers an optimal laser beam that balances vaporization of tissue with coagulation to prevent blood loss and provides enhanced surgical control compared to other laser systems. The GreenLight ^TM laser and fiber system revenue accounted for approximately 3% of our total revenues in both 2013 and 2012 .

Elevate ^TM Anterior and Posterior Pelvic Floor Repair System. Our AMS segment offers the Elevate ^® transvaginal pelvic floor repair system, for the treatment of pelvic organ prolapse, which may be caused by pregnancy, labor, and childbirth. Using an anatomically designed needle and self-fixating tips, Elevate ^® allows for safe, simple and precise mesh placement through a single vaginal incision, avoiding an external incision. Elevate ^® revenue accounted for approximately 1% of our total revenues in both 2013 and 2012 .

Monarc ^® Subfascial Hammock. The Monarc ^® subfascial hammock is our leading device to treat female stress urinary incontinence, which generally results from a weakening of the tissue surrounding the bladder and urethra which can be a result of pregnancy, childbirth and aging. It incorporates unique helical needles to place a self-fixating, sub-fascial hammock through the obturator foramin. Monarc ^® revenue accounted for approximately 1% of our total revenues in both 2013 and 2012 .

Select Products in Development

Endo Pharmaceuticals

Our branded pharmaceuticals pipeline portfolio contains products and product candidates that have differentiating features for multiple therapeutic areas, including pain, urology and endocrinology. A selection of Endo Pharmaceutical's pipeline products follows. We cannot predict when or if any of these pipeline products will be approved by the FDA.

Aveed ^TM . Aveed ^TM is a novel, long-acting injectable testosterone preparation for the treatment of male hypogonadism. Male hypogonadism is an increasingly recognized medical condition characterized by a reduced or absent secretion of testosterone from the testes. Reduced testosterone levels can lead to health problems and significantly impair quality of life. Common effects of hypogonadism include decreased sexual desire, erectile dysfunction, muscle loss and weakness, depression, and an increased risk of osteoporosis. If approved, Aveed ^TM would be the first long-acting injectable testosterone preparation available in the U.S. in the growing market for testosterone replacement therapies. The U.S. rights to Aveed ^TM were acquired from Schering AG, Germany, in July 2005. Although not yet approved in the U.S., Aveed ^TM is approved in and currently marketed in Europe and a number of other countries. In May 2010, a new patent covering Aveed ^TM was issued by the U.S. Patent and Trademark Office. The patent’s expiration date is March 14, 2027.

On December 2, 2009, we received a Complete Response letter from the FDA regarding Aveed ^TM . In 2010 and 2011, the Company met with the FDA to discuss the existing clinical data provided to the FDA as well as the potential path-forward. In November 2012, as a follow up to our 2011 meeting with the FDA, Endo Pharmaceuticals submitted a complete response to the FDA after conducting an extensive review of all clinical study and post-marketing data. The FDA held an advisory committee meeting in April 2013, and Endo submitted new data to FDA in August 2013. A new PDUFA date was set for February 28, 2014.

BEMA ^® Buprenorphine. In January 2012, Endo Pharmaceuticals signed a worldwide license and development agreement with BioDelivery Sciences International, Inc. (BioDelivery) for the exclusive rights to develop and commercialize BEMA ^® Buprenorphine. BEMA ^® Buprenorphine is a transmucosal form of buprenorphine, a partial mu-opiate receptor agonist, which incorporates a bioerodible mucoadhesive (BEMA ^® ) technology. In January 2014, the Company achieved positive top-line results from its pivotal Phase III efficacy study of BEMA buprenorphine in opioid- "naive" subjects for the treatment of moderate to severe chronic pain in patients requiring around-the-clock opioid therapy. The second Phase III clinical study of BEMA Buprenorphine in an opioid "experienced" patient group is ongoing with results anticipated in mid-2014.

Qualitest

Our generics pharmaceuticals pipeline portfolio contains products and product candidates for multiple therapeutic areas, including pain, urology, oncology, and endocrinology. Our Qualitest business has a number of products at various stages of development, including approximately 46 ANDAs under active FDA review as of December 31, 2013.  The timing of final FDA approval of ANDA applications depends on a variety of factors, including whether the applicant challenges any listed patents for the drug and whether the manufacturer of the reference listed drug is entitled to one or more statutory exclusivity periods, during which the FDA is prohibited from approving generic products. In certain circumstances, a regulatory exclusivity period can extend beyond the life of a patent, and thus block ANDAs from being approved on the patent expiration date.

We cannot predict when or if any of these products will be approved by the FDA.

AMS

Our AMS segment maintains a portfolio of products and product candidates in development with differentiating features for our areas of focus in pelvic health. Current development products showing significant promise include a urology drug delivery device and a fecal incontinence device. We also have other products, including certain undisclosed products in our therapeutic areas of interest in early stages of development.

We cannot predict when or if any of these products will be approved by the FDA.

Competition

Endo Pharmaceuticals

The branded pharmaceutical industry is highly competitive. Our products compete with products manufactured by many other companies in highly competitive markets throughout the U.S. Our competitors vary depending upon therapeutic and product categories. Competitors include many of the major brand name and generic manufacturers of pharmaceuticals, especially those doing business in the U.S. In the market for branded pharmaceuticals, our competitors, including Abbott Laboratories, Johnson & Johnson, Pfizer, Inc., Purdue Pharma, L.P., Allergan, Inc. and Actavis Pharmaceuticals, Inc. , vary depending on product category, dosage strength and drug-delivery systems.

We compete principally through our targeted product development and acquisition and in-licensing strategies. The competitive landscape in the acquisition and in-licensing of pharmaceutical products has intensified in recent years as there has been a reduction in the number of compounds available and an increase in the number of companies and the collective resources bidding on available assets. In addition to product development and acquisitions, other competitive factors in the pharmaceutical industry include product efficacy, safety, ease of use, price, demonstrated cost-effectiveness, marketing effectiveness, service, reputation and access to technical information.

The competitive environment of the branded product business requires us to continually seek out technological innovations and to market our products effectively. However, some of our current branded products not only face competition from other brands, but also from generic versions. Generic versions are generally significantly less expensive than branded versions, and, where available, may be required in preference to the branded version under third-party reimbursement programs, or substituted by pharmacies. If competitors introduce new products, delivery systems or processes with therapeutic or cost advantages, our products can be subject to progressive price reductions or decreased volume of sales, or both. Most new products that we introduce must compete with other products already on the market or products that are later developed by competitors. Manufacturers of generic pharmaceuticals typically invest far less in research and development than research-based pharmaceutical companies and therefore can price their products significantly lower than branded products. Accordingly, when a branded product loses its market exclusivity, it normally faces intense price competition from generic forms of the product. To successfully compete for business with managed care and pharmacy benefits management organizations, we must often demonstrate that our products offer not only medical benefits but also cost advantages as compared with other forms of care.

The Company is aware of certain competitive activities involving Lidoderm ^® , Opana ^® ER and Frova ^® . For a full description of these competitive activities, including the litigation related to Paragraph IV Certification Notices, see Note 14. Commitments and Contingencies in the Consolidated Financial Statements , included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" .

Qualitest

In the generic pharmaceutical market, we face intense competition from other generic drug manufacturers, brand name pharmaceutical companies through authorized generics, existing brand equivalents and manufacturers of therapeutically similar drugs. In the market for generic pharmaceuticals, our competitors, including Actavis, Teva Pharmaceuticals Industries Ltd., Mylan Technologies Inc., and Sandoz, Inc., vary depending on product category and dosage strength.

We believe that our competitive advantages include our ability to continually introduce new generic equivalents for brand-name drug products, our quality and cost-effective production, our customer service and the breadth of our generic product line.

As a result of consolidation among wholesale distributors as well as rapid growth of large retail drug store chains, a small number of large wholesale distributors control a significant share of the market, and the number of independent drug stores and small drug store chains has decreased. This has resulted in customers gaining more purchasing power. Consequently, there is heightened competition among generic drug producers for the business of this smaller and more selective customer base.

Newly introduced generic products with limited or no other generic competition are typically sold at higher selling prices. As competition from other generic products increases, selling prices for all participants typically decline. Consequently, the maintenance of profitable operations in generic pharmaceuticals depends, in part, on our ability to select, develop and launch new generic products in a timely and cost efficient manner and to maintain efficient, high quality manufacturing relationships. New drugs and future

developments in improved and/or advanced drug delivery technologies or other therapeutic techniques may provide therapeutic or cost advantages to competing products.

AMS

Competition in the medical device industry is intense and characterized by extensive research efforts and rapid technological progress. The primary competitive factors include clinical outcomes, distribution capabilities, and price relative to (1) competitive technologies and (2) reimbursements to physicians and hospitals for their services. With certain of our products, our competitors may have greater resources with which to develop and market products, broader distribution resources, and economies of scale which we do not have.

The competitive advantage of our AMS segment is driven by its focus on the pelvic health market and our ability to develop new products and innovative procedures, obtain regulatory clearance, maintain regulatory compliance, protect our intellectual property, protect the proprietary technology of our products and manufacturing processes and maintain and develop preference for our products among physicians and patients. All of these abilities require recruiting, retaining, and developing skilled and dedicated employees, training physicians and maintaining and developing excellent relationships with physicians and suppliers.

Seasonality

Although our business is affected by the purchasing patterns and concentration of our customers, our business is not materially impacted by seasonality.

Major Customers

We primarily sell our branded pharmaceuticals and generics directly to a limited number of large pharmacy chains and through a limited number of wholesale drug distributors who, in turn, supply products to pharmacies, hospitals, governmental agencies and physicians. Total revenues from customers that accounted for 10% or more of our total consolidated revenues during the years ended December 31 are as follows:  

Revenues from these customers are included within our Endo Pharmaceuticals and Qualitest segments.

As a result of consolidation among wholesale distributors as well as rapid growth of large retail drug store chains, a small number of large wholesale distributors control a significant share of the market, and the number of independent drug stores and small drug store chains has decreased. Some wholesale distributors have demanded that pharmaceutical manufacturers, including us, enter into distribution service agreements (DSAs) pursuant to which the wholesale distributors provide the pharmaceutical manufacturers with specific services, including the provision of periodic retail demand information and current inventory levels and other information. Currently, we have entered into four such agreements.

None of our AMS customers or distributors accounted for 10% or more of our total revenues during 2013 , 2012 and 2011 .

Patents, Trademarks, Licenses and Proprietary Property

As of February 20, 2014 , we held approximately: 305 U.S. issued patents, 235 U.S. patent applications pending, 257 foreign issued patents, and 351 foreign patent applications pending. In addition, as of February 20, 2014 , we have licenses for approximately 52 U.S. issued patents, 16 U.S. patent applications pending, 179 foreign issued patents and 115 foreign patent applications pending. The following table sets forth information as of February 20, 2014 regarding each of our currently held material patents:

The effect of these issued patents is that they provide us with patent protection for the claims covered by the patents. The coverage claimed in a patent application can be significantly reduced before the patent is issued. Accordingly, we do not know whether any of the applications we acquire or license will result in the issuance of patents, or, if any patents are issued, whether they will provide significant proprietary protection or will be challenged, circumvented or invalidated. Because unissued U.S. patent applications are maintained in secrecy for a period of eighteen months and U.S. patent applications filed prior to November 29, 2000 are not disclosed until such patents are issued, and since publication of discoveries in the scientific or patent literature often lags behind actual discoveries, we cannot be certain of the priority of inventions covered by pending patent applications. Moreover, we may have to participate in interference proceedings declared by the U.S. Patent and Trademark Office to determine priority of invention, or in opposition proceedings in a foreign patent office, either of which could result in substantial cost to us, even if the eventual outcome is favorable to us. There can be no assurance that the patents, if issued, would be held valid by a court of competent jurisdiction. An adverse outcome could subject us to significant liabilities to third parties, require disputed rights to be licensed from third parties or require us to cease using such technology.

We believe that our patents, the protection of discoveries in connection with our development activities, our proprietary products, technologies, processes and know-how and all of our intellectual property are important to our business. All of our brand

products and certain generic products, such as Endocet ^® and Endodan ^® , are sold under trademarks. To achieve a competitive position, we rely on trade secrets, non-patented proprietary know-how and continuing technological innovation, where patent protection is not believed to be appropriate or attainable. In addition, as outlined above, we have a number of patent licenses from third parties, some of which may be important to our business. See Note 11. License and Collaboration Agreements in the Consolidated Financial Statements , included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" . There can be no assurance that any of our patents, licenses or other intellectual property rights will afford us any protection from competition.

We rely on confidentiality agreements with our employees, consultants and other parties to protect, among other things, trade secrets and other proprietary technology. There can be no assurance that these agreements will not be breached, that we will have adequate remedies for any breach, that others will not independently develop equivalent proprietary information or that other third parties will not otherwise gain access to our trade secrets and other intellectual property.

We may find it necessary to initiate litigation to enforce our patent rights, to protect our intellectual property or to determine the scope and validity of the proprietary rights of others. Litigation is costly and time-consuming, and there can be no assurance that our litigation expenses will not be significant in the future or that we will prevail in any such litigation. See Note 14. Commitments and Contingencies in the Consolidated Financial Statements, included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" .

Governmental Regulation

The development, testing, manufacture, holding, packaging, labeling, distribution, marketing, and sales of our products and our ongoing product development activities are subject to extensive and rigorous government regulation. The Federal Food, Drug, and Cosmetic Act (FFDCA), the Controlled Substances Act and other federal and state statutes and regulations govern or influence the testing, manufacture, packaging, labeling, storage, record keeping, approval, advertising, promotion, sale and distribution of pharmaceutical products. Noncompliance with applicable requirements can result in fines, recall or seizure of products, total or partial suspension of production and/or distribution, injunctions, refusal of the government to enter into supply contracts or to approve NDAs and ANDAs, civil penalties and criminal prosecution.

FDA approval is typically required before each dosage form or strength of any new drug can be marketed. Applications for FDA approval to market a drug must contain information relating to efficacy, safety, toxicity, pharmacokinetics, product formulation, raw material suppliers, stability, manufacturing processes, packaging, labeling, and quality control. The FDA also has the authority to require post-approval testing after marketing has begun and to suspend or revoke previously granted drug approvals. Product development and approval within this regulatory framework requires many years and involves the expenditure of substantial resources.

Based on scientific developments, post-market experience, or other legislative or regulatory changes, the current FDA standards of review for approving new pharmaceutical products are sometimes more stringent than those that were applied in the past. Some new or evolving review standards or conditions for approval were not applied to many established products currently on the market, including certain opioid products. As a result, the FDA does not have as extensive safety databases on these products as on some products developed more recently. Accordingly, we believe the FDA has expressed an intention to develop such databases for certain of these products, including many opioids.

We cannot determine what effect changes in the FDA’s laws or regulations, when and if promulgated, or changes in the FDA’s legal or regulatory interpretations or requirements, may have on our business in the future. Changes could, among other things, require expanded or different labeling, additional testing, the recall or discontinuance of certain products, additional record keeping and expanded documentation of the properties of certain products and scientific substantiation. Such changes, or new legislation, could have a material adverse effect on our business, financial condition, results of operations and cash flows.

In 2013, the Supreme Court, in The Federal Trade Commission v. Actavis , determined that reverse payment patent settlements between generic and brand companies should be evaluated under the rule of reason, and provided limited guidance beyond the selection of this standard. The impact of this decision is not certain, and could have a material adverse effect on our business, financial condition, results of operations, and cash flows.

EPI and Qualitest Pharmaceuticals sell products that are controlled substances as defined in the Controlled Substances Act of 1970 (CSA), which establishes certain security and record keeping requirements administered by the Drug Enforcement Agency (DEA). The DEA is concerned with the control of registered handlers of controlled substances, and with the equipment and raw materials used in their manufacture and packaging, in order to prevent loss and diversion into illicit channels of commerce. The DEA regulates controlled substances as Schedule I, II, III, IV or V substances, with Schedule I and II substances considered to present the highest risk of substance abuse and Schedule V substances the lowest risk. Our Qualitest segment sells a significant amount of hydrocodone-containing products. Hydrocodone combination products are currently regulated as Schedule III substances. Pursuant to the Food and Drug Administration Safety and Innovation Act, which is further described below, Congress has required the FDA to convene a meeting to solicit advice and recommendations to assist in conducting a scientific and medical evaluation on whether to

reschedule combination products containing hydrocodone. Congress is acting in response to continued reports of misuse, abuse and addiction of products containing hydrocodone. An advisory committee to take public comments on the proposed rescheduling took place on January 24-25, 2013. At this advisory committee, the FDA's Drug Safety and Risk Management Advisory Committee recommended that hydrocodone be rescheduled to Schedule II. The FDA is responsible for preparing the documentation to reschedule a drug. Upon completion, the medical and scientific evaluation and scheduling recommendation of the FDA are forwarded to the Assistant Secretary for Health (ASH) who makes the final determination on behalf of the Secretary of the Department of Health and Human Services (HHS). The medical and scientific evaluation and the recommendation as to the appropriate schedule for the drug are then forwarded to the DEA. Should the DEA reschedule hydrocodone-containing products, it will be done through the rule-making process. A change from a Schedule III substance to a Schedule II substance could restrict patient access to needed medication. It would also require significant changes to the entire industry's supply chain from manufacturers, to wholesalers and retailers. We believe the increased burden and cost to the healthcare system would be substantial. While the briefing document published by the FDA on October 25, 2012, in advance of the advisory committee meeting suggests the FDA may not be prepared to recommend to the DEA that hydrocodone products be rescheduled to Schedule II, the FDA did, however, acknowledge that the question remains on how to reduce levels of abuse of hydrocodone combination products. In October 2013 the FDA issued a statement confirming that they plan to submit by December 2013 their formal recommendation package to HHS to reclassify hydrocodone combination products into Schedule II. The FDA anticipates the National Institute on Drug Abuse (NIDA)/HHS will concur with the recommendation. This will begin a process that will lead to a final decision by the DEA on the appropriate scheduling of these products. As part of our expansion of our Huntsville site, we have factored in the potential for hydrocodone being rescheduled.

On February 7-8, 2013, the FDA held a public hearing to obtain information, particularly scientific evidence, such as study data or peer-reviewed analyses, on issues pertaining to the use of opioid drugs in the treatment of chronic pain. The FDA is considering a Citizen Petition filed in July 2012 by a group of physicians seeking changes to the labeling of opioid drug products relating to indications and duration of use. In considering the petition and the ongoing policy debate on the use of opioid medications, the FDA heard presentations from individuals and groups on diagnosing and understanding patient pain, and what it would mean to change or limit patient access to opioids. On September 10, 2013 FDA announced class-wide safety labeling changes and new postmarket study requirements for all extended-release and long-acting (ER/LA) opioid. The updated indication states that ER/LA opioids are indicated for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate. The updated indication further clarifies that, because of the risks of addiction, abuse, and misuse, even at recommended doses, and because of the greater risks of overdose and death, these drugs should be reserved for use in patients for whom alternative treatment options (e.g., non-opioid analgesics or immediate-release opioids) are ineffective, not tolerated, or would be otherwise inadequate to provide sufficient management of pain; ER/LA opioid analgesics are not indicated for as-needed pain relief. Recognizing that more information is needed to assess the serious risks associated with long-term use of ER/LA opioids, the FDA is also requiring drug companies that make these products to conduct further studies and clinical trials. The goals of these postmarket requirements are to further assess the known serious risks of misuse, abuse, increased sensitivity to pain (hyperalgesia), addiction, overdose, and death. It is not presently known what impact, if any, these changes to the indications for use or results from the post marketing studies may have on our business, financial position, results of operations and cash flows.

The FFDCA allows the FDA to impose mandatory and permissive debarment and other penalties on individuals and companies that are convicted of certain offenses relating to the drug approval process. In some situations, the FFDCA authorizes the FDA to not accept or review applications for a period of time from a company or an individual that has committed certain violations. It also authorizes the temporary denial of approval of applications during the investigation of certain violations that could lead to debarment and also, in more limited circumstances, authorizes the suspension of the distribution of approved drugs by the affected company. Lastly, the FFDCA allows for civil penalties and withdrawal of previously approved applications. In addition, the Social Security Act authorizes the Department of HHS's Office of Inspector General (OIG) to impose mandatory and permissive exclusion of individuals and entities from participation in federal healthcare programs, such as Medicare and Medicaid, if convicted of certain offenses relating to health care fraud. We believe neither we nor any of our employees have ever been subject to debarment or exclusion.

The evolving and complex nature of regulatory requirements, the broad authority and discretion of the FDA and the generally high level of regulatory oversight results in a continuing possibility that from time to time, we will be adversely affected by regulatory actions despite ongoing efforts and commitment to achieve and maintain full compliance with all regulatory requirements.

NDA / BLA Process

FDA approval is typically required before any new drug can be marketed. An NDA or Biologics License Application (BLA) is a filing submitted to the FDA to obtain approval of new chemical entities and other innovations for which thorough applied research is required to demonstrate safety and effectiveness in use. The process generally involves:

Clinical trials are typically conducted in three sequential phases, although the phases may overlap.

Each trial is conducted in accordance with certain standards under protocols that detail the objectives of the study, the parameters to be used to monitor safety and efficacy criteria to be evaluated. Each protocol must be submitted to the FDA as part of the IND. In some cases, the FDA allows a company to rely on data developed in foreign countries or previously published data, which eliminates the need to independently repeat some or all of the studies.

Data from preclinical testing and clinical trials are submitted to the FDA in an NDA or BLA for marketing approval and to foreign government health authorities in a marketing authorization application. The process of completing clinical trials for a new drug may take many years and require the expenditures of substantial resources. Preparing an NDA, BLA or marketing authorization application involves considerable data collection, verification, analysis and expense, and there can be no assurance that approval from the FDA or authorization from any other health authority will be granted on a timely basis, if at all. The approval process is affected by a number of factors, primarily the risks and benefits demonstrated in clinical trials as well as the severity of the disease and the availability of alternative treatments. The FDA may deny an NDA or BLA, or foreign government health authorities may deny a marketing authorization application, if the applicable regulatory criteria are not satisfied, or such authorities may require additional testing or information.

As a condition of approval, the FDA or foreign regulatory authorities may require further studies, including Phase IV post-marketing studies and pediatric studies to provide additional data. For some drugs, the FDA may require a REMS, which could include medication guides, physician communication plans, or restrictions on distribution and use, such as limitations on who may prescribe the drug or where it may be dispensed or administered. In September 2007, Congress passed legislation authorizing FDA to require companies to undertake such studies to assess the risks of drugs known or signaling potential to have serious safety issues. Other post-marketing studies could be used to gain approval for the use of a product as a treatment for clinical indications other than those for which the product was initially tested. Also, the FDA or foreign government regulatory authorities require post-marketing reporting to monitor the adverse effects of drugs. Results of post-marketing programs may limit or expand the further marketing of the products.

On January 30, 2007, the FDA announced a drug safety initiative to implement a number of proposals made by the Institute of Medicine (IOM) in a September 2006 report. As part of this program, the FDA began publishing a newsletter that contains non-confidential, non-proprietary information regarding post-marketing review of new drug products. Additionally, in 2005, the FDA created a Drug Safety Oversight Board to provide oversight and advice to the Center for Drug Evaluation and Research Director on the management of important drug safety issues and to manage the dissemination of certain safety information through the FDA’s Web site to healthcare professionals and patients.

On February 6, 2009, the FDA sent letters to manufacturers of certain opioid drug products, indicating that these drugs will be required to have a Risk Evaluation and Mitigation Strategy (REMS) to verify that the benefits of these products continue to outweigh the risks. The FDA has authority to require a REMS under the Food and Drug Administration Amendments Act (FDAAA) when necessary to substantiate that the benefits of a drug outweigh the risks. The affected opioid drugs include branded and generic products. Three products sold by Endo were included in the list of affected opioid drugs: Opana ^® ER, morphine sulfate ER and oxycodone ER. On December 9, 2011, the FDA approved our interim REMS for Opana ^® ER, which was subsequently superseded by

the class-wide extended-release/long-acting REMS approved on July 9, 2012. The goal of this REMS is to reduce serious adverse outcomes resulting from inappropriate prescribing, misuse and abuse of extended-release or long-acting opioid analgesics while maintaining patient access to pain medications. The REMS includes a Medication Guide, Elements to Assure Safe Use and annual REMS Assessment Reports. These changes, or others required by the FDA, could have an adverse effect on the sales, gross margins and marketing costs of these products.

On January 14, 2011, the FDA announced in the Federal Register that it was taking steps to reduce the maximum strength of acetaminophen in prescription combination drug products to help reduce or prevent the risk of liver injury from an unintentional overdose of acetaminophen. A variety of prescription combination drug products include acetaminophen, such as those that contain the opioids oxycodone hydrochloride or hydrocodone bitartrate and acetaminophen, among others. Specifically, the FDA announced that it was asking product sponsors to limit the maximum strength of acetaminophen per dosage unit of the prescription combination drug products to 325 milligrams (mg) over a three-year phase-out period. The FDA also notified holders of approved NDAs and ANDAs that they would be required to modify the labeling of prescription acetaminophen drug products to include a Boxed Warning to include new safety information about acetaminophen and liver toxicity, and a Warning on the potential for allergic reactions. Additionally, in August 2013, the FDA announced that it will require a warning added to labels of prescription drugs containing acetaminophen to address the risk of serious skin reactions. On January 14, 2014, the FDA issued a recommendation that healthcare professionals discontinue prescribing and dispensing prescription combination products containing more than 325 mg of acetaminophen per dosage unit. The FDA also stated that it intends to initiate proceedings to withdraw approval of prescription combination drug products containing more than 325 mg of acetaminophen per dosage unit pursuant to its authority under FFDCA. Among the products impacted by the FDA’s actions are three Endo combination drug pain relief products: Percocet ^® , Endocet ^® and Zydone ^® ; and the Qualitest Pharmaceuticals combination drug pain relief products: butalbital/acetaminophen/caffeine, hydrocodone/acetaminophen and oxycodone/acetaminophen. The Company has implemented several measures to comply with these FDA actions. Specifically, any high dose prescription product containing more than 325 mg of acetaminophen will have an expiration date that will prevent saleable product remaining in the marketplace after January 2014. In addition, steps are being taken to increase production of similar low dose products to provide uninterrupted supply to all customers as demand transitions to the alternate products. Nonetheless, these regulatory changes, or others required by the FDA, could have an adverse effect on our business, financial condition, results of operations and cash flows.

Finally, the FDA is developing guidance for the industry on how to test, detect and prevent safety problems during drug development, including tests that would identify preclinical biomarkers of toxicity. Because these initiatives and other similar initiatives are still being developed, it is unclear what impact, if any, they may have on our ability to obtain approval of new drugs or on our sales of existing products.

In addition to these initiatives, the Prescription Drug User Fee Act (PDUFA) was reauthorized on September 27, 2007 through passage of the FDAAA. In connection with that reauthorization legislation, Congress enacted new measures authorizing FDA to require companies to undertake post-approval testing of products to assess known or signaled potential serious safety risks and to make labeling changes to address safety risks. The legislation also re-authorized the FDA to require testing of drug products in children where appropriate and provided additional incentives to companies that agree to undertake such testing in connection with a new NDA as part of the Best Pharmaceuticals for Children Act (BPCA). The legislation also contained provisions to expedite new drug development and collect data and results from clinical trials of drug products more readily available via a registry managed by the National Institutes of Health. These provisions, depending on how they are and continue to be implemented by the FDA, could impact our ability to market existing and new products. The PDUFA and the Medical Device User Fee and Modernization Act (MDUFMA) were reauthorized and amended in 2012 by the Food and Drug Administration Safety and Innovation Act (FDASIA), which is further described below.

On July 9, 2012, the FDASIA, which primarily amends existing legislation, was signed into law. In addition to reauthorizing and amending several drug and medical device provisions that were scheduled to sunset, including PDUFA and MDUFMA, the new law establishes new user fee statutes for generic drugs and biosimilars. FDASIA also, among other provisions, provides the FDA with tools intended to expedite the development and review of innovative new medicines that address certain unmet medical needs, affords the FDA new authority concerning drug shortages, makes significant changes to enhance the FDA's inspection authority and drug supply chain and includes several miscellaneous provisions such as provisions on prescription drug abuse, 180-day generic drug marketing exclusivity, citizen petitions and controlled substances. The law significantly changes existing legislation in several respects that will have considerable short- and long-term effects on the regulated industries and could impact our ability to market existing and new products.

Section 505(b)(2) of the FFDCA provides a procedure for an applicant to seek approval of a drug product for which safety and/or efficacy has been established through preclinical and clinical data that the applicant does not have proprietary rights to use. Under that section, despite not having a right of reference, an applicant can cite studies containing such clinical data to prove safety or efficacy, along with any additional clinical data necessary to support the application. Section 505(b)(2) NDAs are subject to patent certification and notification requirements that are similar to those that are required for ANDAs (refer to next section). Approval of

Section 505(b)(2) NDAs, like ANDAs, also may be delayed by market exclusivity that covers the reference product. However, despite the similarities, Section 505(b)(2) applications are not permitted when an applicant could submit and obtain approval of an ANDA.

ANDA Process

FDA approval of an ANDA is required before a generic equivalent of an existing or reference-listed drug can be marketed. The ANDA process is abbreviated in that the FDA waives the requirement of conducting complete preclinical and clinical studies and instead relies principally on bioequivalence studies. Bioequivalence generally involves a comparison of the rate of absorption and levels of concentration of a generic drug in the body with those of the previously approved drug. When the rate and extent of absorption of systemically acting test and reference drugs are the same, the two drugs are considered bioequivalent and regarded as therapeutically equivalent, meaning that a pharmacist can substitute the product for the reference-listed drug. There are other or additional measures the FDA may rely upon to determine bioequivalence in locally acting products, which could include comparative clinical efficacy trials. In May 2007, the FDA began posting to its website, bioequivalence recommendations for individual products in order to provide guidance to generic manufacturers on the specific method of demonstrating bioequivalence.

An ANDA may also be submitted for a product authorized by approval of an ANDA suitability petition. Such petitions may be submitted to secure authorization to file an ANDA for a product that differs from a previously approved drug in active ingredient, route of administration, dosage form or strength. For example, the FDA has authorized the substitution of acetaminophen for aspirin in certain combination drug products and switching the drug from a capsule to tablet form. Bioequivalence data may be required, if applicable, as in the case of a tablet in place of a capsule, although the two products would not be rated as therapeutically equivalent, meaning that a pharmacist cannot automatically substitute the product for the reference-listed drug. Congress re-authorized pediatric testing legislation in September 2007 which may continue to affect pharmaceutical firms’ ability to file ANDAs via the suitability petition route. In addition, under that same legislation, ANDA applicants are required to implement a REMS in connection with obtaining approval of their products, when the reference-listed drug has an approved REMS.

The timing of final FDA approval of ANDA applications depends on a variety of factors, including whether the applicant challenges any listed patents for the drug and whether the manufacturer of the reference listed drug is entitled to one or more statutory exclusivity periods, during which the FDA is prohibited from approving generic products. In certain circumstances, a regulatory exclusivity period can extend beyond the life of a patent, and thus block ANDAs from being approved on the patent expiration date. For example, under the BPCA, if a manufacturer receives and accepts a written request from the FDA to conduct studies on the safety and efficacy of its product in children, the exclusivity of a product is extended by six months past the patent or regulatory expiration date if the manufacturer completes and submits the results of the studies, a so-called pediatric study extension.

Patent and Non-Patent Exclusivity Periods

A sponsor of an NDA is required to identify in its application any patent that claims the drug or a use of the drug subject to the application. Upon NDA approval, the FDA lists these patents in a publication referred to as the Orange Book. Any person that files a Section 505(b)(2) NDA, the type of NDA that relies upon the data in the application for which the patents are listed, or an ANDA to secure approval of a generic version of this first, or listed drug, must make a certification in respect to listed patents. The FDA may not approve such an application for the drug until expiration of the listed patents unless (1) the generic applicant certifies that the listed patents are invalid, unenforceable or not infringed by the proposed generic drug and gives notice to the holder of the NDA for the listed drug of the basis upon which the patents are challenged, and (2) the holder of the listed drug does not sue the later applicant for patent infringement within 45 days of receipt of notice. Under the current law, if an infringement suit is filed, the FDA may not approve the later application until the earliest of: 30 months after submission; entry of an appellate court judgment holding the patent invalid, unenforceable or not infringed; such time as the court may order; or the patent expires.

One of the key motivators for challenging patents is the 180-day market exclusivity period vis a vis other generic applicants granted to the developer of a generic version of a product that is the first to have its application accepted for filing by the FDA and whose filing includes a certification that the applicable patent(s) are invalid, unenforceable and/or not infringed (a Paragraph IV certification) and that prevails in litigation with the manufacturer of the branded product over the applicable patent(s). Under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (2003 Medicare Act), with accompanying amendments to the Hatch-Waxman Act (Drug Price Competition and Patent Term Restoration Act), this marketing exclusivity would begin to run upon the earlier of the commercial launch of the generic product or upon an appellate court decision in the generic company’s favor.

In addition, the holder of the NDA for the listed drug may be entitled to certain non-patent exclusivity during which the FDA cannot approve an application for a competing generic product or 505(b)(2) NDA product. If the listed drug is a new chemical entity, in certain circumstances, the FDA may not approve any application for five years; if it is not a new chemical entity, the FDA may not approve a competitive application for three years if the application for the product included clinical studies that were essential to the approval. Certain additional periods of exclusivity may be available if the listed drug is indicated for use in a rare disease or condition (orphan drug exclusivity) or is studied for pediatric indications (pediatric exclusivity).

Medical Device Regulation

Numerous governmental authorities, principally the FDA and comparable foreign regulatory agencies, regulate the development, testing, design, manufacturing, packaging, labeling, storage, installation, marketing, distribution and servicing of our medical devices. In Europe and certain other countries, we comply with the European Union Directives for Medical Devices and certify our compliance with the CE Mark. In other countries outside the U.S., we comply with appropriate local registration and authorization. In the U.S., under the FFDCA, medical devices, such as those manufactured by AMS are classified into Class I, II, or III depending on the degree of risk associated with each medical device and the extent of control needed to provide for safety and effectiveness. Class I includes devices with the least risk and Class III includes those with the greatest risk. Class I medical devices are subject to the FDA’s general controls, which include compliance with the applicable portions of the FDA’s Quality System Regulation, facility registration and product listing, reporting of adverse medical events, and appropriate, truthful and non-misleading labeling, advertising, and promotional materials. Class II devices are subject to the FDA’s general controls and may also be subject to other special controls as deemed necessary by the FDA to provide for the safety and effectiveness of the device. Class III medical devices are subject to the FDA’s general controls, special controls, and premarket approval prior to marketing.

AMS currently markets Class I, II and III medical devices. If a device is classified as Class I or II, and if it is not exempt, its manufacturer will have to undertake the premarket notification process in order to obtain marketing clearance, also referred to as the 510(k) process. When a 510(k) is required, the manufacturer must submit to the FDA a premarket notification demonstrating that the device is substantially equivalent to either a device that was legally marketed prior to May 28, 1976, the date upon which the Medical Device Amendments of 1976 were enacted, or to another commercially available, similar device which was subsequently cleared through the 510(k) process. By regulation, the FDA is required to clear a 510(k) within 90 days of submission of the application. As a practical matter, clearance often takes longer, particularly if a clinical trial is required. A successful 510(k) submission results in FDA permission to market the new device.

Class III devices are approved through a Premarket Approval Application (PMA), under which the applicant must submit data from adequate and well-controlled clinical trials to the FDA that demonstrate the safety and effectiveness of the device for its intended use(s). All of our marketed devices have been approved or cleared for marketing pursuant to a PMA or the 510(k) process. The FDA also has authority under the FFDCA to require a manufacturer to conduct post-market surveillance of a Class II or Class III device. On January 3, 2012, the FDA ordered manufacturers of transvaginal surgical mesh used for pelvic organ prolapse and of single incision mini-slings for urinary incontinence, such as AMS to conduct post-market surveillance safety studies and to monitor adverse event rates relating to the use of these products. Of the nineteen class-wide post market study orders received by AMS for pelvic floor repair and mini-sling products, three remain active. AMS is in the process of complying with these orders. In its orders, the FDA also noted that it is still considering the recommendation of an advisory committee on September 9, 2011, that urogynecological surgical mesh for transvaginal repair of pelvic organ prolapse be reclassified from Class II to Class III. On March 27, 2013, the FDA updated its Urogynecologic Surgical Mesh Implant website to include additional information intended for patients about the use of mesh for repair of stress urinary incontinence. The update was based on an analysis of adverse events reported to FDA, findings reported in the scientific literature, and input received from the advisory committee meeting. FDA highlighted complications associated with placement of mesh through vaginal wall incision, but did not link them to any single brand or model of mesh. Vaginal erosion, infection, pain, urinary problems and recurrence of incontinence were listed as the most frequent complications, and additional complications were listed, including erosion of the mesh and painful vaginal scarring. The need for explantation was noted, as well as other complications which included injuries to nearby organs such as bowel, bladder, or blood vessels. Specific queries for the physician were recommended, and reporting of complications was encouraged.

The FDA has broad post-market regulatory and enforcement powers with respect to medical devices, similar to those for pharmaceutical products. Failure to comply with the applicable U.S. medical device regulatory requirements could result in, among other things, warning letters, fines, injunctions, consent decrees, civil money penalties, repairs, replacements, refunds, recalls or seizures of products, total or partial suspension of production, the FDA’s refusal to grant future premarket clearances or approvals, withdrawals or suspensions of current product applications, and criminal prosecution.

On January 19, 2011, the FDA’s Center for Devices and Radiological Health (CDRH) unveiled a plan of 25 action items it intended to implement during 2011 relating to the 510(k) premarket notification process for bringing medical devices to market. Among the actions the FDA indicated it plans to take were to issue guidance documents to clarify when clinical data should be submitted in support of a premarket notification submission, to clarify the review of submissions that use multiple predicates in a premarket notification submission, to clarify when modifications to a device require a new 510(k), and other guidance documents. The plan included other intended measures such as streamlining the review of innovative lower-risk products though the de novo review process, and establishing a Center Science Council of senior FDA experts to enhance science-based decision-making in 510(k) reviews. The FDA announced that it intended to refer to the IOM for further review and consideration of other significant actions, such as whether or not to define the scope and grounds for the exercise of authority to partially or fully rescind a 510(k) marketing clearance, to clarify and consolidate the concepts of indications for use and intended use, to clarify when a device should no longer be available as a predicate to support a showing of substantial equivalence and whether to develop guidance on a new class of devices, called class IIb, for which additional data would be necessary to support a 510(k) determination.

On July 29, 2011, the IOM released its report, which recommended that the FDA move towards replacing the current 510(k) review process, which is based on substantial equivalence determinations, with a new integrated premarket and post-market regulatory framework that provides a reasonable assurance of safety and efficacy. The IOM also recommended that the FDA prioritize enhancement of its post-market surveillance program. The IOM also stated that it was unable to study fully the seven specific actions referred to it by the FDA because the requests came at the end of its review. The FDA decided not to act on the IOM recommendation to replace the 510(k) substantial equivalence framework, but since January 2011, the CDRH has issued numerous guidance documents and proposed and final regulations impacting all medical devices (PMA and 510(k)), that have the potential to significantly impact how the FDA regulates medical devices. These include issuing guidance on data requirements for pivotal clinical investigations for medical devices, on CDHR's evaluation of substantial equivalence in premarket notification 510(k) submissions, on presubmission meetings for investigational device exemption (IDEs), including with regard to multiple predicate devices, and on its decisions on whether and how to approve a device clinical study, among other draft guidance. While the FDA issued and withdrew (pursuant to a requirement of the MDUFMA legislation), a draft guidance on when device modifications require a new 510(k), it plans to issue another draft guidance on device modification requirements subsequent to issuance of a required congressional report. In addition, in September 2013, the FDA issued a final rule that requires a unique identifier on distributed devices for tracking purposes. This requirement becomes effective in September 2014, initially for Class III, implantable, life supporting and life sustaining devices.

Further, pursuant to the March 2010 healthcare reform law, a medical device tax went into effect January 1, 2013, for devices listed with the FDA.

The extent and how the FDA will implement some or all of its planned action items, draft guidance and proposed and final rules is unknown at this time. Congress expressed concern regarding a number of FDA’s medical device initiatives, and altered the pace and scope of some of these changes. For example, FDA may not disapprove an IDE study solely because it is insufficient to support approval, clearance or de novo classification. Also, FDASIA pushes FDA toward broader and more rapid usage of the de novo classification process by allowing a sponsor to bypass an initial 510(k) submission for low-moderate risk devices. Additionally, FDA had issued a 2011 guidance to clarify when manufacturers must submit a new 510(k) for a modification of a Class II device, imposing stringent criteria. Congress disagreed with FDA’s approach, requiring withdrawal of the guidance and a reinstatement and rereview of the 1997 guidance governing when a modification requires a new 510(k) submission. Nonetheless, FDA actions could have a significant effect on the cost of applying for and maintaining applications under the 510(k) clearance mechanism, on the criteria required for achieving clearance for additional uses of existing devices or new 510(k) devices, for the marketing of medical devices and for the post-market support of marketed devices.

Quality Assurance Requirements

The FDA enforces regulations to require that the methods used in, and the facilities and controls used for, the manufacture, processing, packing and holding of drugs and medical devices conform to current good manufacturing practices, or cGMP. The cGMP regulations the FDA enforces are comprehensive and cover all aspects of manufacturing operations, from receipt of raw materials to finished product distribution, insofar as they bear upon whether drugs meet all the identity, strength, quality and purity characteristics required of them. The cGMP regulations for devices, called the Quality System Regulation, are also comprehensive and cover all aspects of device manufacture, from pre-production design requirements and validation to installation and servicing, insofar as they bear upon the safe and effective use of the device and whether the device otherwise meets the requirements of the FFDCA. To assure compliance requires a continuous commitment of time, money and effort in all operational areas.

The FDA conducts pre-approval inspections of facilities engaged in the development, manufacture, processing, packing, testing and holding of the drugs subject to NDAs and ANDAs. If the FDA concludes that the facilities to be used do not or did not meet cGMP, good laboratory practices or GLP or good clinical practices or GCP requirements, it will not approve the application. Corrective actions to remedy the deficiencies must be performed and are usually verified in a subsequent inspection. In addition, manufacturers of both pharmaceutical products and active pharmaceutical ingredients (APIs) used to formulate the drug also ordinarily undergo a pre-approval inspection, although the inspection can be waived when the manufacturer has had a passing cGMP inspection in the immediate past. Failure of any facility to pass a pre-approval inspection will result in delayed approval and would have a material adverse effect on our business, results of operations, financial condition and cash flows.

The FDA also conducts periodic inspections of drug and device facilities to assess the cGMP status of marketed products. If the FDA were to find serious cGMP non-compliance during such an inspection, it could take regulatory actions that could adversely affect our business, results of operations, financial condition and cash flows. Imported API and other components needed to manufacture our products could be rejected by U.S. Customs, usually after conferring with the FDA. In respect to domestic establishments, the FDA could initiate product seizures or request or in some instances require product recalls and seek to enjoin a product’s manufacture and distribution. In certain circumstances, violations could support civil penalties and criminal prosecutions. In addition, if the FDA concludes that a company is not in compliance with cGMP requirements, sanctions may be imposed that include preventing that company from receiving the necessary licenses to export its products and classifying that company as an unacceptable supplier, thereby disqualifying that company from selling products to federal agencies.

On January 9, 2012, we announced that, as a result of a shutdown by Novartis Consumer Health Division of its manufacturing facility in Lincoln, Nebraska to facilitate certain manufacturing process improvements, there would be a short-term supply constraint for our Opana ^® ER product, which was manufactured by Novartis. To the best of our knowledge, these manufacturing improvements were intended to address the possibility of packaging errors that could potentially result in product mix-ups. We have transitioned the production of the formulation of Opana ^® ER designed to be crush-resistant to a third-party manufacturing facility managed by our development partner, Grünenthal, began production of our Voltaren ^® Gel product at an alternative Novartis manufacturing source, and made alternative arrangements for supply of certain other of our analgesic products which had been manufactured at the Nebraska facility prior to the shutdown. On December 31, 2012, Endo and Novartis Consumer Health entered into a settlement agreement whereby the parties agreed to terminate the manufacturing agreement between the parties. Also, Novartis Consumer Health has agreed to reimburse Endo for certain out-of-pocket costs, including costs related to recalls of certain of our products manufactured at the Lincoln facility and incremental freight charges associated with the transfer of Voltaren ^® Gel to an alternate Novartis manufacturing site.

Following an FDA inspection of the solid dose manufacturing facility in Charlotte, North Carolina, that took place from January 14, 2014 through February 14, 2014, our subsidiary, Qualitest Pharmaceuticals, received a Form 483 Notice of Inspectional Observations dated February 14, 2014, listing observations of the inspector focused on improper adherence to established processes and procedures.  Qualitest Pharmaceuticals is currently drafting a comprehensive response to the observations.

Following an FDA inspection of the tablet manufacturing facility in Huntsville, Alabama in May 2013, our subsidiary, Qualitest Pharmaceuticals, received a Form 483 Notice of Inspectional Observations dated May 30, 2013. The observations focused on investigations and the proper follow-up and tablet counters.  A comprehensive response was provided to the FDA on June 12, 2013 addressing each observation and providing corrective actions and appropriate remediation plans.  The final corrective action report was sent to the FDA in September 2013.  No further feedback from the FDA has been received. 

The FDA also inspected the liquids facility of our Qualitest Pharmaceuticals subsidiary in Huntsville, Alabama in March 2013, with no 483s issued.

In February 2013, the FDA conducted an inspection of AMS's Minnetonka, Minnesota facility.  Following such inspection, the FDA issued two observations on a Form 483 Notice of Inspectional Observations.  Both observations related to timeliness of complaint handling procedures. AMS provided a written response to the FDA on February 28, 2013 detailing proposed corrective actions.  AMS has provided the FDA updates on the progress on these corrective actions, which are substantially complete.  In February 2014, the FDA conducted another inspection of AMS's Minnetonka, Minnesota facility. Following such inspection, the FDA issued three observations on a Form 483.  These observations relate to process validation, risk analysis and corrective and preventive action procedures. AMS is currently drafting a comprehensive response to the observations and is cooperating with the FDA to address this Form 483. The Minnetonka, Minnesota facility will continue to manufacture products while AMS works with the FDA to address these observations. 

Other FDA Matters

If there are any modifications to an approved drug, including changes in indication, manufacturing process or labeling or a change in a manufacturing facility, an applicant must notify the FDA, and in many cases, approval for such changes must be submitted to the FDA. Additionally, the FDA regulates post-approval promotional labeling and advertising activities to assure that such activities are being conducted in conformity with statutory and regulatory requirements. These regulations include standards or restrictions for direct-to-consumer advertising, industry-sponsored scientific and educational activities, promotional activities and off-label promotion. While physicians may prescribe for off-label uses, manufacturers may only promote for the approved indications and in accordance with the provisions of the approved label. In December 2011, the FDA issued a draft guidance document on responding to unsolicited requests for off-label information about a drug or device, which suggests limits on a company's ability to respond, and in March 2012 issued a draft guidance on pre-dissemination review of direct-to-consumer TV advertising. In January 2014, the FDA issued a draft guidance on postmarketing submission of interactive promotional media, and it is likely to issue further guidance on the use of social media in advertising or promoting a product (mandated by FDASIA to occur by July 2014). These and other statements of the FDA interpreting the FFDCA and the FDA's regulatory authority may place further limits and restrictions on the advertising of our products. The FDA has very broad enforcement authority under the FFDCA. Failure to abide by these regulations can result in compliance or enforcement action, including the issuance of warning letters directing entities to correct deviations from FDA regulations and civil and criminal investigations and prosecutions. These activities could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Drug Enforcement Administration

We sell products that are controlled substances as defined in the CSA, which establishes certain security and record keeping requirements administered by the DEA. The DEA is concerned with the control of registered handlers of controlled substances, and with the equipment and raw materials used in their manufacture and packaging, in order to prevent loss and diversion into illicit channels of commerce.

The DEA regulates controlled substances as Schedule I, II, III, IV or V substances, with Schedule I and II substances considered to present the highest risk of substance abuse and Schedule V substances the lowest risk. The active ingredients in some of our current products and products in development, including oxycodone, oxymorphone, morphine, fentanyl and hydrocodone, are listed by the DEA as Schedule II or III substances under the CSA. Consequently, their manufacture, shipment, storage, sale and use are subject to a high degree of regulation. For example, generally, all Schedule II drug prescriptions must be signed by a physician, physically presented to a pharmacist and may not be refilled without a new prescription.

The DEA limits the availability of the active ingredients used in many of our current products and products in development, as well as the production of these products, and we, or our contract manufacturing organizations, must annually apply to the DEA for procurement and production quotas in order to obtain and produce these substances. As a result, our quotas may not be sufficient to meet commercial demand or complete clinical trials. Moreover, the DEA may adjust these quotas from time to time during the year, although the DEA has substantial discretion in whether or not to make such adjustments. Any delay or refusal by the DEA in establishing our quotas, or modification of our quotas, for controlled substances could delay or stop our clinical trials or product launches, or could cause trade inventory disruptions for those products that have already been launched, which could have a material adverse effect on our business, financial position, results of operations and cash flows.

To meet its responsibilities, the DEA conducts periodic inspections of registered establishments that handle controlled substances. Annual registration is required for any facility that manufactures, tests, distributes, dispenses, imports or exports any controlled substance. The facilities must have the security, control and accounting mechanisms required by the DEA to prevent loss and diversion. Failure to maintain compliance, particularly as manifested in loss or diversion, can result in regulatory action that could have a material adverse effect on our business, results of operations, financial condition and cash flows. The DEA may seek civil penalties, refuse to renew necessary registrations, or initiate proceedings to revoke those registrations. In certain circumstances, violations could eventuate in criminal proceedings.

Individual states also regulate controlled substances, and we, as well as our third-party API suppliers and manufacturers, are subject to such regulation by several states with respect to the manufacture and distribution of these products.

We, and to our knowledge, our third-party API suppliers, dosage form manufacturers, distributors and researchers have necessary registrations, and we believe all registrants operate in conformity with applicable registration requirements.

Government Benefit Programs

Statutory and regulatory requirements for Medicaid, Medicare, TRICARE and other government healthcare programs govern provider reimbursement levels, including requiring that all pharmaceutical companies pay rebates to individual states based on a percentage of their net sales arising from Medicaid program-reimbursed products. In addition, under a final rule promulgated by the U.S. Department of Defense (DOD) on March 17, 2009 and reissued on October 15, 2010 with an effective date of December 27, 2010, payments made to retail pharmacies under the TRICARE Retail Pharmacy Program for prescriptions filled on or after January 28, 2008 are subject to certain price ceilings. Under the final rule and as a condition for placement on the Uniform Formulary, manufacturers are required, among other things, to make refunds for prescriptions filled beginning on January 28, 2008 and extending to future periods based on the newly applicable price limits. On April 17, 2012, the TRICARE Management Authority issued guidance regarding the obligation to pay refunds for prescription drug utilization for the period first quarter 2008 to second quarter 2009. On January 4, 2013, the D.C. Circuit Court of Appeals upheld the DOD's interpretation of the final rule that refunds are due on any prescription filed after January 28, 2008. We had requested a waiver to be exempt from such refunds for the period January 28, 2008 through May 25, 2009, based upon our belief that the DOD was not likely to prevail in court with its interpretation that such refunds were owed. In September 2012, DOD denied our waiver. As a result, we paid TRICARE approximately $16.0 million in full satisfaction of our obligations. The federal and/or state governments may continue to enact measures in the future aimed at containing or reducing payment levels for prescription pharmaceuticals paid for in whole or in part with government funds. We cannot predict the nature of such measures or their impact on our profitability and cash flows. These efforts could, however, have material consequences for the pharmaceutical industry and the Company.

From time to time, legislative changes are made to government healthcare programs that impact our business. For example, the Medicare Prescription Drug Improvement and Modernization Act of 2003 created Medicare Part D, a new prescription drug coverage program for people with Medicare through a new system of private market drug benefit plans. This law provides a prescription drug benefit to seniors and individuals with disabilities in the Medicare program (Medicare Part D). Congress continues to examine various Medicare policy proposals that may result in a downward pressure on the prices of prescription drugs in the Medicare program.

In addition, in March 2010, President Obama signed into law healthcare reform legislation that will make major changes to the healthcare system.

While some provisions of the new healthcare reform law have already taken effect, most of the provisions to expand access to health care coverage will not be implemented until 2014 and beyond. Since implementation is incremental to the enactment date of the law, there are still many challenges and uncertainties ahead. Such a comprehensive reform measure will require expanded

implementation efforts on the part of federal and state agencies embarking on rule-making to develop the specific components of their new authority.

In March 2012, the U.S. Supreme Court addressed challenges to the constitutionality of the health care reform law. The Court considered the constitutionality of the individual mandate, as well as whether the overall health care law could still stand even if the individual mandate was ruled unconstitutional. On June 28, 2012, the Supreme Court upheld the individual mandate. In its ruling, the Court did address the expansion of Medicaid required under the law, a provision that requires states to expand Medicaid to approximately 17 million additional low-income individuals up to 133% of the federal poverty level. Under the law, the federal government would pay the additional costs for the expansion of Medicaid for the years 2014 to 2016 and then the federal share would phase down to 90% by 2020. The law provided that if a state did not expand its Medicaid program eligibility to 133% , it would risk losing the federal share for all its Medicaid funding and not just the funding for the expansion. On this matter, the Supreme Court upheld the constitutionality of the Medicaid expansion but ruled that the punitive aspects of the provision are unconstitutional meaning that the federal government does not have the authority to terminate existing federal funding for Medicaid if the states do not expand Medicaid. This aspect of the ruling may cause some states to refuse to expand Medicaid eligibility thereby limiting the number of individuals with access to health insurance.

The implementation of the healthcare reform law has and will continue to result in a transformation of the delivery and payment for health care services in the U.S., including the expansion of health insurance coverage to an estimated 32 million Americans. In addition, there are significant health insurance reforms that have improved patients’ ability to obtain and maintain health insurance. Such measures include: the elimination of lifetime caps; no rescission of policies; and no denial of coverage due to preexisting conditions. The expansion of healthcare insurance and these additional market reforms should result in greater access to the Company’s products.

In response to the U.S. debt-ceiling crisis, Congress passed the Budget Control Act of 2011 on August 2, 2011. Within the Act, Congress created the Joint Select Committee on Deficit Reduction (JSC), which was charged with issuing a formal recommendation on how to reduce the federal deficit by $1.2 trillion to $1.5 trillion over the next ten years. The Budget Control Act provided that if Congress failed to pass a deficit reduction plan by December 23, 2011, a process of sequestration would occur on January 1, 2013 which would result in across-the-board spending cuts to certain government programs, including Medicare, in order to meet the deficit reduction goal. Since the JSC failed to put forth a proposal and Congress ultimately failed to pass a deficit reduction plan, the sequestration process was scheduled to be triggered on January 2, 2013. Congress initially was able to delay sequestration when it passed the American Taxpayer Relief Act of 2012 (H.R. 8) until March 1, 2013. On April 1, 2013, however, Medicare provider payments were cut by two percent under the Budget Control Act of 2011. Although the Bipartisan Budget Act of 2013, signed into law on December 26, 2013, did not provide relief to the two percent sequestration reduction, it did implement 0.5% increase for physician services provided through March 31, 2014.

Healthcare Fraud and Abuse Laws

We are subject to various federal, state and local laws targeting fraud and abuse in the healthcare industry. For example, in the U.S., there are federal and state anti-kickback laws that prohibit the payment or receipt of kickbacks, bribes or other remuneration intended to induce the purchase or recommendation of healthcare products and services or reward past purchases or recommendations. Violations of these laws can lead to civil and criminal penalties, including fines, imprisonment and exclusion from participation in federal healthcare programs. These laws are potentially applicable to us as both a manufacturer and a supplier of products reimbursed by federal health care programs. These laws also apply to hospitals, physicians and other potential purchasers of our products.

In particular, the federal Anti-Kickback Statute (42 U.S.C. § 1320a-7b(b)) prohibits persons from knowingly and willfully soliciting, receiving, offering or providing remuneration, directly or indirectly, to induce either the referral of an individual, or the furnishing, recommending, or arranging for a good or service, for which payment may be made under a federal healthcare program such as the Medicare and Medicaid programs. Remuneration is not defined in the federal Anti- Kickback Statute and has been broadly interpreted to include anything of value, including for example, gifts, discounts, the furnishing of supplies or equipment, credit arrangements, payments of cash, waivers of payments, ownership interests and providing anything at less than its fair market value. In addition, the recently enacted healthcare reform legislation, among other things, amends the intent requirement of the federal Anti-Kickback Statute and the applicable criminal healthcare fraud statutes contained within 42 U.S.C. § 1320a-7b. Pursuant to the statutory amendment, a person or entity no longer needs to have actual knowledge of this statute or specific intent to violate it in order to have committed a violation. In addition, the U.S. Health Reform Law provides that the government may assert that a claim including items or services resulting from a violation of 42 U.S.C. § 1320a-7b constitutes a false or fraudulent claim for purposes of the civil False Claims Act (discussed below) or the civil monetary penalties statute, which imposes fines against any person who is determined to have presented or caused to be presented claims to a federal healthcare program that the person knows or should know is for an item or service that was not provided as claimed or is false or fraudulent. Moreover, the lack of uniform court interpretation of the Anti-Kickback Statute makes compliance with the law difficult, as virtually any relationship with entities that purchase or refer for our services could implicate the Anti-Kickback Statute.

Recognizing that the Anti-Kickback Statute is broad and may technically prohibit many innocuous or beneficial arrangements within the healthcare industry, the HHS-OIG issued regulations in July 1991, and additional safe harbor regulation periodically since that time, which the HHS-OIG refers to as safe harbors. These safe harbor regulations set forth certain provisions which, if met in form and substance, will assure pharmaceutical and medical device companies, healthcare providers and other parties that they will not be prosecuted under the federal Anti-Kickback Statute. Although full compliance with these provisions safeguards against prosecution under the federal Anti- Kickback Statute, the failure of a transaction or arrangement to fit within a specific safe harbor does not necessarily mean that the transaction or arrangement is illegal or that prosecution under the federal Anti-Kickback Statute will be pursued. However, conduct and business arrangements that do not fully satisfy each element of an applicable safe harbor may result in increased scrutiny by government enforcement authorities, such as the HHS-OIG or federal prosecutors. Additionally, there are certain statutory exceptions to the federal Anti-Kickback Statute, one or more of which could be used to protect a business arrangement, although we understand that the HHS-OIG is of the view that an arrangement that does not meet the requirements of a safe harbor cannot satisfy the corresponding statutory exception, if any, under the federal Anti-Kickback Statute.

Additionally, many states have adopted laws similar to the federal Anti-Kickback Statute. Some of these state prohibitions apply to referral of patients for healthcare items or services reimbursed by any third-party payer, not only the Medicare and Medicaid programs, and do not contain identical safe harbors.

Government officials have focused their Anti-Kickback Statute enforcement efforts relating to drug and device manufacturers, including False Claims Act (described below) actions on marketing of healthcare services and products, among other activities, and have brought cases against numerous pharmaceutical and medical device companies, and certain sales and marketing personnel for allegedly offering unlawful inducements to potential or existing customers in an attempt to procure their business or reward past purchases or recommendations.

Another development affecting the healthcare industry is the increased use of the federal civil False Claims Act and, in particular, actions brought pursuant to the False Claims Act’s whistleblower or qui tam provisions. The civil False Claims Act imposes liability on any person or entity who, among other things, knowingly presents, or causes to be presented, a false or fraudulent claim for payment by a federal healthcare program. The qui tam provisions of the False Claims Act allow a private individual to bring civil actions on behalf of the federal government alleging that the defendant has submitted or caused the submission of a false claim to the federal government, and to share in any monetary recovery. In recent years, the number or suits brought by private individuals has increased dramatically. In addition, various states have enacted false claim laws analogous to the False Claims Act. Many of these state laws apply where a claim is submitted to any third-party payer and not merely a federal healthcare program.

When an entity is determined to have violated the federal False Claims Act, it may be required to pay up to three times the actual damages sustained by the government, plus civil penalties of $5,500 to $11,000 for each separate false claim. There are many potential bases for liability under the False Claims Act. Liability arises, primarily, when an entity knowingly submits, or causes another to submit, a false claim for reimbursement to the federal government. The False Claims Act also has been used to assert liability of the basis of inadequate care, kickbacks and other improper referrals, improperly reported government pricing metrics such as Best Price or AMP, improper use of Medicare reimbursement information when detailing the provider of services, improper promotion of off-label uses (i.e., uses not expressly approved by FDA in a drug’s or device’s label), misrepresentations with respect to the services rendered and causing improper claims to be submitted for allegedly unapproved drugs or other products. Our activities relating to the reporting of discount and rebate information and other information affecting federal, state and third-party reimbursement of our products, the sale and marketing of our products and our service arrangements or data purchases, among other activities, may be subject to scrutiny under these laws. For example, a number of cases brought by local and state government entities are pending that allege generally that our wholly owned subsidiary, EPI, and numerous other pharmaceutical companies reported false pricing information in connection with certain drugs that are reimbursable under Medicaid. The cost of defending these cases and any other actions that may be brought under the False Claims Act or a similar state law, as well as any sanctions imposed, could adversely affect our financial performance.

Also, the Health Insurance Portability and Accountability Act of 1996, or HIPAA, created several new federal crimes, including health care fraud, and false statements relating to health care matters. The health care fraud statute prohibits knowingly and willfully executing a scheme to defraud any health care benefit program, including private third-party payers. The false statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for health care benefits, items or services.

In addition, some states have enacted compliance and reporting requirements aimed at drug and device manufacturers. For example, under California law, pharmaceutical companies must adopt a comprehensive compliance program that is in accordance with both the April 2003 HHS-OIG Compliance Program Guidance for Pharmaceutical Manufacturers and the Pharmaceutical Research and Manufacturers of America Code on Interactions with Healthcare Professionals, or the PhRMA Code. The PhRMA Code seeks to promote transparency in relationships between health care professionals and the pharmaceutical industry and to require that pharmaceutical marketing activities comport with the highest ethical standards. The PhRMA Code contains strict limitations on certain interactions between health care professionals and the pharmaceutical industry relating to gifts, meals, entertainment and speaker

programs, among others. The AdvaMed Code of Ethics on Interactions with Healthcare Professionals contains similar limitations on interactions with health care professionals and the medical device industry. Massachusetts and Vermont require drug and device companies to adopt standards that are in some areas more restrictive than the AdvaMed Code or PhRMA Code, imposing additional restrictions on the types of interactions that pharmaceutical and medical device companies or their agents (e.g., sales representatives) may have with health care professionals, including bans or strict limitations on the provision of meals, entertainment, hospitality, travel and lodging expenses, and other financial support, including funding for continuing medical education activities. Some states, including Massachusetts, Vermont and Minnesota, also require public reporting of certain payments to physicians and other health care providers.

The Federal Physician Payments Sunshine Act, which is part of the healthcare reform law, imposes federal sunshine provisions, with annual reporting to begin in 2014 for various types of payments to physicians and teaching hospitals, beginning with payments made in 2013. On February 8, 2013, the Centers for Medicare and Medicaid Services (CMS) published a long-awaited final rule implementing the sunshine law. Under the final regulations, applicable drug, biological, device, and medical supply manufacturers are required to report to CMS payments or other transfers of value made to physicians and teaching hospitals, and the regulations also require the manufacturers and applicable group purchasing organizations (GPOs) to report ownership and investment interests held by physicians or their immediate family members. The final rule sets forth a reporting process that permits physicians, teaching hospitals, and physician owners and investors to dispute information reported by applicable manufacturers and GPOs. Under the regulations, information that is the subject of a dispute not resolved within the initial allotted 60-day review and dispute resolution period will be posted on CMS's public website in the manner in which it was submitted by the manufacturer or GPO, rather than in a manner that includes the version provided by the disputing physician, teaching hospital, or physician owner or investor. Under the rule, applicable manufacturers and GPOs must begin collecting the required data on August 1, 2013, and must submit their first reports to CMS by March 31, 2014. When fully implemented, failure to comply with required reporting requirements could subject manufacturers and others to substantial civil money penalties.

Healthcare Privacy and Security Laws

HIPAA, the Health Information Technology for Economic and Clinical Health Act (HITECH Act) and their implementing regulations (collectively, HIPAA), establish, among other things, standards for the privacy, security and notification of the security breach of certain individually identifiable health information (protected health information). To the extent that one of our business units is a business associate under HIPAA because it receives protected health information from a health care provider, health plan or other covered entity to provide a service on behalf of the covered entity, the business unit is directly subject to the privacy, security and breach notification standards and the HIPAA civil and criminal enforcement scheme. The HITECH Act, adopted in 2009 as part of the American Recovery and Reinvestment Act of 2009, commonly referred to as the economic stimulus package, increased the civil and criminal penalties that may be imposed against covered entities, business associates and possibly other persons, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce HIPAA and seek attorney’s fees and costs associated with pursuing federal civil actions.

The states also have health information privacy and security laws which may be more restrictive of our uses and disclosures of patient information than HIPAA. While we have attempted to comply with HIPAA and similar state laws, it is possible that some of our health information management activities could be subject to regulatory scrutiny at some point in the future, and we cannot provide an assurance that we will be found to be in compliance with all of these laws following any such regulatory review.

Service Agreements

We contract with various third parties to provide certain critical services including manufacturing, supply, warehousing, distribution, customer service, certain financial functions, certain research and development activities and medical affairs.

For a complete description of our manufacturing, supply and other service agreements, see Note 14. Commitments and Contingencies in the Consolidated Financial Statements, included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" .

Acquisitions, License and Collaboration Agreements

We continue to seek to enhance our product line and develop a balanced portfolio of differentiated products through selective product acquisitions and in-licensing, or acquiring licenses to products, compounds and technologies from third parties or through company acquisitions. The Company enters into strategic alliances and collaborative arrangements with third parties, which give the Company rights to develop, manufacture, market and/or sell pharmaceutical products, the rights to which are primarily owned by these third parties. These alliances and arrangements can take many forms, including licensing arrangements, co-development and co-marketing agreements, co-promotion arrangements, research collaborations and joint ventures. Such alliances and arrangements enable us to share the risk of incurring all research and development expenses that do not lead to revenue-generating products; however, because profits from alliance products are shared with the counter-parties to the collaborative arrangement, the gross margins on alliance products are generally lower, sometimes substantially so, than the gross margins that could be achieved had the Company not opted for a development partner. For a full discussion, including agreement terms and status, see our disclosures under Note 11.

License and Collaboration Agreements in the Consolidated Financial Statements, included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" .

Environmental Matters

Our operations are subject to substantial federal, state and local environmental laws and regulations concerning, among other matters, the generation, handling, storage, transportation, treatment and disposal of, and exposure to, toxic and hazardous substances. Violation of these laws and regulations, which frequently change, can lead to substantial fines and penalties. Some of our operations require environmental permits and controls to prevent and limit pollution of the environment. We believe that our facilities and the facilities of our third party service providers are in substantial compliance with applicable environmental laws and regulations and we do not believe that future compliance will have a material adverse effect on our financial condition or results of operations.

Employees

As of February 20, 2014 , we have 3,371 employees, of which 238 are engaged in research and development and regulatory work, 641 in sales and marketing, 1,148 in manufacturing, 385 in quality assurance and 959 in general and administrative capacities. Our employees are not represented by unions and we believe that our relations with our employees are good.

Executive Officers of the Registrant

The following table sets forth information as of February 20, 2014 regarding each of our current executive officers:  

Biographies

Our executive officers are briefly described below:

RAJIV DE SILVA, 47 , is President, Chief Executive Officer and a Director of Endo. Prior to joining Endo in March 2013, Mr. De Silva served as the President of Valeant Pharmaceuticals International, Inc. from October 2010 to January 2013 and served as its Chief Operating Officer, Specialty Pharmaceuticals from January 2009 until January 2013. He was responsible for all specialty pharmaceutical operations, including sales and marketing, research and development, manufacturing and business development. He has broad international experience, having managed businesses in the United States, Europe, Canada, Latin America, Asia, South Africa and Australia/New Zealand. Prior to joining Valeant, Mr. De Silva held various leadership positions with Novartis. He served as President of Novartis Vaccines USA and Head, Vaccines of the Americas at Novartis. During this time, he played a key leadership role at Novartis’ Vaccines & Diagnostics Division. Mr. De Silva also served as President of Novartis Pharmaceuticals Canada. He originally joined Novartis as Global Head of Strategic Planning for Novartis Pharma AG in Basel, Switzerland. Prior to his time at Novartis, Mr. De Silva was a Principal at McKinsey & Company and served as a member of the leadership group of its Pharmaceuticals and Medical Products Practice. Mr. De Silva was a Director of AMAG Pharmaceuticals, Inc. and is currently a Member of the Board of Trustees at Kent Place School in Summit, NJ. He holds a Bachelor of Science in Engineering, Honors from Princeton University, a Master of Science from Stanford University and a Master of Business Administration with Distinction from the Wharton School at the University of Pennsylvania.

SUKETU UPADHYAY, 44 , is Executive Vice President and Chief Financial Officer, joined Endo in September 2013. Prior to joining Endo, since 2010, Mr. Upadhyay served as Interim Chief Financial Officer as well as Senior Vice President of Finance and Corporate Controller of Becton, Dickinson & Co (BD). In addition to other executive finance roles at BD, from 2007 to 2010, he served in various finance leadership roles at AstraZeneca and Johnson & Johnson. Mr. Upadhyay spent the early part of his career in public accounting with KPMG and received his CPA in May 1996.  He received a Bachelor of Science in Finance from Albright College and received a Master of Business Administration from The Fuqua School of Business at Duke University.

DONALD DeGOLYER, 52 , Chief Operating Officer, Pharmaceuticals, joined Endo in August 2013.  In this role he leads both the Qualitest and Endo Pharmaceuticals businesses as fully integrated business units. Prior to joining Endo, Mr. DeGolyer served as President of Sandoz Inc. (a Novartis company) the second largest generics company in the world.   While at Novartis, Mr. DeGolyer held various senior leadership positions including, US Managed Markets, Established Medicines for Novartis Pharmaceuticals and was a member of the Executive Committee.  Prior to Novartis, Mr. DeGolyer held positions of increasing responsibilities with Johnson and Johnson for 11 years in pharmaceutical commercial roles including senior leadership positions in marketing and sales. 

Additionally, Mr. DeGolyer has international pharmaceutical experience and health information technology expertise, having held senior leadership roles at Oxford GlycoSciences Plc and ParkStone Medical, respectively.  He began his career at Pfizer in sales and sales management.  Mr. DeGolyer served as Vice Chairman on the Executive Committee and Board of Directors for the Generic Pharmaceutical Association (GPhA).  He holds a Masters of Business Administration from Fairleigh Dickinson University and is a graduate of University of Rochester.

IVAN P. GERGEL, M.D., 53 , was appointed Executive Vice President, Research & Development and Chief Scientific Officer in April 2008. Prior to joining Endo, Dr. Gergel was Senior Vice President of Scientific Affairs and President of the Forest Research Institute of Forest Laboratories Inc. Prior to that, Dr. Gergel served as Vice President and Chief Medical Officer at Forest and Executive Vice President of the Forest Research Institute. He joined Forest in 1998 as Executive Director of Clinical Research following nine years at SmithKline Beecham, and was named Vice President of Clinical Development and Clinical Affairs in 1999. Dr. Gergel received his M.D. from the Royal Free Medical School of the University of London and an MBA from the Wharton School. Dr. Gergel is a member of the Board of Directors of Pennsylvania BIO, as well as a member of the Board of Directors of the PhRMA Foundation and has served as a Member of PhRMA’s Scientific and Regulatory Executive Committee.

CAROLINE B. MANOGUE, 45 , has served as Executive Vice President, Chief Legal Officer and Secretary since 2004. Prior to joining Endo in 2000 as Endo’s Senior Vice President, General Counsel and Secretary, she practiced law in the New York office of the law firm Skadden, Arps, Slate, Meagher & Flom LLP, where she specialized in mergers & acquisitions, securities and corporate law. At Endo, she is responsible for all aspects of the company’s legal function, including securities law, litigation, intellectual property and commercial law, as well as overseeing compliance with current laws and existing pharmaceutical company guidelines relating to, among other things, clinical, sales and marketing practices. In her capacity as Secretary, she is responsible for corporate governance matters and reports directly to the Board of Directors. Ms. Manogue received her J.D. from Fordham Law School and her B.A. cum laude from Middlebury College. She was the 2011-2012 Chairperson of the PhRMA Law Section, and is a member of the Board of Trustees of the Healthcare Institute of New Jersey (HINJ) and a member of HINJ’s Finance and Audit Committee.

CAMILLE FARHAT, 44 , joined Endo in September 2012 as President of AMS. Mr. Farhat brings broad global experience from assignments in 10 countries and nine industries over 22 years. He is a business executive with a track record of revitalizing, turning around, and profitably growing businesses. Before joining Endo, Mr. Farhat held the position of General Manager of Baxter Pharmaceuticals & Technologies (BPT). Camille joined Baxter in February 2006 as General Manager of Global Infusion Systems. Prior to Baxter, Mr. Farhat was with Medtronic where he held the position of Vice President of Business Development after he was Global General Manager of Medtronic's Gastroenterology and Urology division. He spent 13 years with General Electric (GE) where he gained broad executive experience with assignments in many businesses, geographies, and functional areas, leading up to his final role with the company as General Manager for the Computed Tomography (CT) business. He holds a Master of Business Administration from Harvard University, a degree in European Union Studies from Institut National d'Etudes Politiques de Paris, and a Bachelor of Sciences (summa cum laude) in International Finance and Accounting from Northeastern University.

We have employment agreements with each of our executive officers.

Available Information

Our internet address is http://www.endo.com. The contents of our website are not part of this Annual Report on Form 10-K, and our internet address is included in this document as an inactive textual reference only. We make our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and all amendments to those reports available free of charge on our website as soon as reasonably practicable after we file such reports with, or furnish such reports to, the Securities and Exchange Commission.

You may also read and copy any materials we file with the SEC at the SEC’s Public Reference Room that is located at 100 F Street, N.E., Room 1580, NW, Washington, DC 20549. Information about the operation of the Public Reference Room can be obtained by calling the SEC at 1-800-SEC-0330 or 1-202-551-8090. You can also access our filings through the SEC’s internet site: www.sec.gov (intended to be an inactive textual reference only).

Item 1A.      Risk Factors

We face intense competition, in particular from companies that develop rival products to our branded pharmaceutical products and from companies with which we compete to acquire rights to intellectual property assets.

The pharmaceutical industry is intensely competitive, and we face competition across the full range of our activities. In addition to product safety, development and efficacy, other competitive factors in the branded pharmaceuticals market include product quality and price, reputation, service and access to scientific and technical information. If we fail to compete successfully in any of these areas, our business, results of operations, financial condition and cash flows could be adversely affected. Our competitors include many of the major brand name and generic manufacturers of pharmaceuticals, especially those doing business in the U.S. In the market for branded pharmaceuticals, our competitors, including Abbott Laboratories, Johnson & Johnson, Pfizer, Inc., Purdue Pharma, L.P., Allergan, Inc. and Actavis Pharmaceuticals, Inc. , vary depending on product category, product dosage strength and drug-delivery

systems. It is possible that developments by our competitors will make our products or technologies uncompetitive or obsolete. Because we are smaller than some of our national competitors in the branded pharmaceuticals sector, we may lack the financial and other resources needed to maintain our profit margins and market share in this sector.

The intensely competitive environment of the branded products business requires an ongoing, extensive search for medical and technological innovations and the ability to market products effectively, including the ability to communicate the effectiveness, safety and value of branded products for their intended uses to healthcare professionals in private practice, group practices and managed care organizations. There can be no assurance that we will be able to successfully develop medical or technological innovations or that we will be able to effectively market our existing branded products or new products we develop.

Our branded products face competition from generic versions. Generic versions are generally significantly cheaper than branded versions and, where available, may be required or encouraged in place of the branded version under third party reimbursement programs, or substituted by pharmacies for branded versions by law. The entrance of generic competition to our branded products generally reduces our market share and adversely affects our profitability and cash flows. Generic competition with our branded products has had and will continue to have a material adverse effect on the net sales and profitability of our branded products.

In addition to our in-house research and development efforts, we seek to acquire rights to new intellectual property through corporate acquisitions, asset acquisitions, licensing and joint venture arrangements. We compete to acquire the intellectual property assets that we require to continue to develop and broaden our product range. Competitors with greater resources may acquire assets that we seek, and even where we are successful, competition may increase the acquisition price of such assets or prevent us from capitalizing on such acquisitions or licensing opportunities. If we fail to compete successfully, our growth may be limited.

If generic manufacturers use litigation and regulatory means to obtain approval for generic versions of our branded drugs, our sales may suffer.

Under the Hatch-Waxman Act, the FDA can approve an ANDA for a generic bioequivalent version of a previously approved drug, without undertaking the full clinical testing necessary to obtain approval to market a new drug. In place of such clinical studies, an ANDA applicant usually needs only to submit data demonstrating that its generic product is bioequivalent to the branded product.

The Hatch-Waxman Act requires us to submit patient information for all our branded drugs. Where an applicant for a drug relies, at least in part, on the data we submit for one of our drugs, the Hatch-Waxman act requires the applicant to notify us of their application and potential infringement of our patent rights. Upon receipt of this notice we have 45 days to bring a patent infringement suit in federal district court against the applicant seeking approval of a generic equivalent of a product covered by one of our patents. If such a suit is commenced, the FDA is generally prohibited from granting approval of the ANDA until the earliest of 30 months from the date the FDA accepted the application for filing, the conclusion of litigation in the generic applicant’s favor, or the expiration or invalidity of the patent(s). Frequently, the unpredictable nature and significant costs of patent litigation leads the parties to settle to remove this uncertainty. Settlement agreements between branded companies and generic applicants may allow, among other things, a generic product to enter the market prior to the expiration of any or all of the applicable patents covering the branded product, either through the introduction of an authorized generic or by providing a license to the applicant for the patents in suit.

In recent years, various generic manufacturers have filed ANDAs seeking FDA approval for generic versions of certain of the Company's key pharmaceutical products, including but not limited to Lidoderm ^® and both the original and crush-resistant formulations of Opana ^® ER. In connection with such filings, these manufacturers have challenged the validity and/or enforceability of one or more of the underlying patents protecting our products. It has been and continues to be our practice to vigorously defend and pursue all available legal and regulatory avenues in defense of the intellectual property rights protecting our key products. As a result, there are currently ongoing legal proceedings brought by the Company and/or its subsidiaries, and in certain cases its third party partners, against manufacturers seeking FDA approval for generic versions of the Company's products.

Despite our efforts to defend our products, litigation is inherently uncertain, and we cannot predict the timing or outcome of our efforts. If we are not successful in defending our intellectual property rights or opt to settle, or if a product's marketing exclusivity rights expire or become otherwise unenforceable, our competitors could ultimately launch generic versions of our products, which could significantly decrease our revenues and could have a material adverse effect on our business, results of operations, financial condition and cash flows as well as our stock price. Due in large part to the materiality of our revenues from Lidoderm ^® , Opana ^® ER and Voltaren ^® Gel (for which our marketing exclusivity rights expired in October 2010), as well as the fact that multiple ANDAs have been filed for Lidoderm ^® and both the original and crush-resistant formulations of Opana ^® ER, we believe our most significant risks from generic competition relate to these products. Additionally, although we no longer market the non-crush resistant formulation of Opana ^® ER, generic versions of this formulation are commercially available, which have resulted and may continue to result in reduced sales of our crush-resistant formulation. For a complete description of the related legal proceedings, see Note 14. Commitments and Contingencies in the Consolidated Financial Statements, included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" .

Lidoderm ^® accounted for 23% of our total revenues for the year ended December 31, 2013 , 34% in 2012 and 33% in 2011 . Opana ^® ER accounted for 9% of our total revenues for the year ended December 31, 2013 , 11% in 2012 and 15% in 2011 . Voltaren ^® Gel accounted for 7% of our total revenues for the year ended December 31, 2013 , 4% in 2012 and 6% in 2011 . Although these percentages have generally decreased in recent years as a result of strategic acquisitions and organic growth of our Endo Pharmaceuticals product portfolio, these products continue to represent significant percentages of our total revenues. Our revenues from Lidoderm ^® have been negatively affected by the September 16, 2013 launch of Actavis's lidocaine patch 5%, a generic version of Lidoderm ^® , and these revenues could decrease further should one or more additional generic versions launch. Impax's and Actavis's launch of generic versions of the non-crush-resistant formulation Opana ^® ER on January 2, 2013 and September 12, 2013, respectively, adversely affected our results of operations since January 2, 2013 and will likely continue to do so in the future. Should additional generic competition enter the market for either formulation of Opana ^® ER, our revenues from Opana ^® ER could decrease further. Similarly, the launch of a generic version of Voltaren ^® Gel or any of our other products could negatively affect that product's revenues. Decreases in revenue related to generic competition could have a material adverse effect on our business, results of operations, financial condition and cash flows as well as our stock price.

Patent litigation, which is often time-consuming and expensive, could have a material adverse effect on our business, results of operations, financial condition and cash flows.

The discovery, trial and appeals process in patent litigation can take several years. Regardless of FDA approval, should we commence a lawsuit against a third party for patent infringement or should there be a lawsuit commenced against us with respect to any alleged patent infringement by us, whether because of the filing of an ANDA or otherwise, the time and cost of such litigation as well as the ultimate outcome of such litigation, if commenced, whether or not we are successful, could have a material adverse effect on our business, results of operations, financial condition and cash flows.

We may be the subject of product liability claims or product recalls, and we may be unable to obtain or maintain insurance adequate to cover potential liabilities.

Our business exposes us to potential liability risks that arise from the testing, manufacturing, marketing and sale of our products. In addition to direct expenditures for damages, settlement and defense costs, there is a possibility of adverse publicity as a result of product liability claims. Product liability is a significant commercial risk for us. Some plaintiffs have received substantial damage awards in some jurisdictions against pharmaceutical and/or medical device companies based upon claims for injuries allegedly caused by the use of their products. In addition, in the age of social media, plaintiffs' counsel now have a wide variety of tools to advertise their services and solicit new clients for litigation. Thus, we could expect that any significant product liability litigation or mass tort in which we are a defendant will have a larger number of plaintiffs than such actions have seen historically because of the increasing use of wide-spread and media-varied advertising. In addition, it may be necessary for us to voluntarily or mandatorily recall or withdraw products that do not meet approved specifications or which subsequent data demonstrate may be unsafe or ineffective, which would also result in adverse publicity as well as in costs connected to the recall and loss of revenue.

Qualitest Pharmaceuticals and, in certain cases, the Company and certain of our other subsidiaries, along with several other pharmaceutical manufacturers, have been named as defendants in a number of cases filed in various state and federal courts that allege plaintiffs experienced injuries as a result of using the prescription medicine metoclopramide. Qualitest Pharmaceuticals and, in certain cases, the Company and certain of our other subsidiaries are also named as defendants in cases that have been filed in various state and federal courts that allege plaintiffs experienced injuries as a result of using prescription medications containing propoxyphene, which has been manufactured and marketed by Qualitest Pharmaceuticals as well as other manufacturers. We may be subject to liabilities arising out of these cases, and are responsible for the cost of managing these cases. We intend to contest all of these cases vigorously. Additional litigation similar to that described above may also be brought by other plaintiffs in various jurisdictions with respect to metoclopramide, propoxyphene-containing prescription medications or other products in the future. However, we cannot predict the timing or outcome of any such litigation, or whether any such litigation will be brought against us and/or Qualitest Pharmaceuticals. Subject to certain terms and conditions, we will be indemnified by the former owners of Qualitest Pharmaceuticals with respect to, among other things, metoclopramide and propoxyphene litigation arising out of the sales of the product by Qualitest Pharmaceuticals between January 1, 2006 and November 30, 2010, the date on which the acquisition was completed, subject to an overall liability cap.

Also, Qualitest Pharmaceuticals and, in certain cases, the Company and certain of our other subsidiaries, have been named as defendants in lawsuits that were filed after the September 2011 recall of several lots of Qualitest Pharmaceuticals’ oral contraceptive products in which the plaintiffs seek out-of-pocket losses, medical expenses, and other damages associated with the alleged failure of these products. Three of these lawsuits sought certification of a nationwide class of all patients who used the recalled products. We have successfully defeated certification of such a class in two of these cases. The issue of whether a class will be certified in the third matter has not yet been resolved. We may be subject to liabilities arising out of these cases, and may be responsible for certain costs of managing these cases. We intend to contest all of these cases vigorously. Additional litigation similar to that described above may also be brought by other plaintiffs in various jurisdictions, though given the date of the recall and the fact that these products are taken on a monthly basis, we believe the likelihood that additional cases will be filed in the future is remote.

We cannot assure you that a product liability claim or series of claims brought against us would not have a material adverse effect on our business, financial condition, results of operations and cash flows. If any claim is brought against us, regardless of the success or failure of the claim, we cannot assure you that we will be able to obtain or maintain product liability insurance in the future on acceptable terms or with adequate coverage against potential liabilities or the cost of a recall. Additionally, we may be limited by the surviving insurance policies of our acquired subsidiaries.

Mesh litigation and FDA actions in connection with transvaginal mesh may continue to adversely affect sales of our female incontinence and pelvic floor repair products and the expense or potential liabilities of that litigation may exceed our current insurance coverage.

As previously discussed, there have been FDA actions to continue to advise the public and medical community regarding potential complications associated with transvaginal placement of surgical mesh to treat pelvic organ prolapse (POP) and stress urinary incontinence (SUI). Additionally, AMS and, in certain cases, the Company or certain of its other subsidiaries, have been named as defendants in multiple lawsuits in various federal and state courts, as well as in Canada, alleging personal injury resulting from use of transvaginal surgical mesh products designed to treat POP and SUI. Plaintiffs in these suits allege various personal injuries including chronic pain, incontinence and inability to control bowel function, and permanent deformities. On February 7, 2012, the U.S. Judicial Panel on Multidistrict Litigation (MDL) issued an order to consolidate and transfer certain of these claims filed against AMS in various federal courts to the Southern District of West Virginia as MDL 2325. We may be subject to liabilities arising out of these cases, and are responsible for the cost of managing these cases. We intend to contest all of these cases vigorously but will also explore all options as appropriate in the best interests of the Company. However, there can be no assurance that our defense will be successful, and any defense may result in significant expense and divert management's attention from our business. We believe it is reasonably possible that the outcomes of such cases could result in losses in excess of insurance reimbursement levels that could have a material adverse effect on our business, financial condition, results of operations and cash flows.

We believe that the significant increase in the number of lawsuits filed against AMS and/or the Company concerning transvaginal mesh devices may have contributed to recent declines in our AMS segment's women's health revenue. This litigation and any additional action on the part of the FDA may negatively affect revenue in our AMS segment's women's health line in the future. We cannot predict the extent to which these developments could result in future decreases in the number of surgical procedures using surgical mesh. Future decreases in the number of surgical procedures using surgical mesh may adversely affect sales of our female incontinence and pelvic floor repair products.

In addition, we have been contacted regarding a civil investigation that has been initiated by a number of state attorneys general into mesh products, including transvaginal surgical mesh products designed to treat POP and SUI. In November 2013, we received a subpoena relating to this investigation from the State of California, and have subsequently received additional subpoenas from other states. We are cooperating fully with this investigation. At this time, we cannot predict or determine the outcome of this investigation or reasonably estimate the amount or range of amounts of fines or penalties, if any, that might result from a settlement or an adverse outcome from this investigation.

Most of our total revenues come from a small number of products.

The following table provides a breakdown of our revenues for the years ended December 31 (dollars in thousands). We have retrospectively revised the segment presentation for all periods presented reflecting the change from four to three reportable segments.

If we are unable to continue to manufacture or market any of our products, if any of them were to lose market share, for example, as the result of the entry of new competitors, particularly companies producing generic versions of branded drugs, or if the prices of any of these products were to decline significantly, our total revenues, profitability and cash flows would be materially adversely affected.

Our ability to protect and maintain our proprietary and licensed third party technology, which is vital to our business, is uncertain.

Our success, competitive position and future income will depend in part on our ability to obtain patent protection relating to the technologies, processes and products we are currently developing and those we may develop in the future. Our policy is to seek patent protection for technologies, processes and products we own and to enforce the intellectual property rights we own and license. We cannot assure you that patent applications we submit and have submitted will result in patents being issued. If an invention qualifies as a joint invention, the joint inventor or his or her employer may have rights in the invention. We cannot assure you that a third party will not infringe upon, design around or develop uses not covered by any patent issued or licensed to us or that these patents will otherwise be commercially viable. In this regard, the patent position of pharmaceutical compounds and compositions is particularly uncertain. Even issued patents may later be modified or revoked by the U.S. Patent and Trademark Office (PTO) by analogous foreign offices or in legal proceedings. Moreover, we believe that obtaining foreign patents may be more difficult than obtaining domestic patents because of differences in patent laws and, accordingly, our patent position may be stronger in the U.S. than abroad. Foreign patents may be more difficult to protect and enforce and/or the remedies available may be less extensive than in the U.S. Various countries limit the subject matter that can be patented and limit the ability of a patent owner to enforce patents in the medical field. This may limit our ability to obtain or utilize certain of our patents internationally. Because unissued U.S. patent applications are typically not published for a period of eighteen months and U.S. patent applications filed prior to November 29, 2000 are not disclosed until such patents are issued, and since publication of discoveries in the scientific or patent literature often lags behind actual discoveries, we cannot be certain that we were the first creator of the inventions covered by our pending patent applications or the first to file patent applications on those inventions. Several drug companies and research and academic institutions have developed technologies, filed patent applications or received patents for technologies that may be related to our business. Others may file patent applications and may receive patents that may conflict with patents or patent applications we have obtained or licensed, either by claiming the same methods or compounds or by claiming methods or compounds that could dominate those owned by or licensed to us. We cannot assure you that any of our pending patent applications will be allowed, or, if allowed, whether the scope of the claims allowed will be sufficient to protect our products. Litigation to establish the validity of patents, to defend against patent infringement claims of others and to assert patent infringement claims against others can be expensive and time-consuming even if the outcome is favorable to us. If the outcome is unfavorable to us, this could have a material adverse effect on our business. We have taken and may, in the future, take steps to enhance our patent protection, but we cannot assure you that these steps will be successful or that, if unsuccessful, our patent protection will be adequate.

We also rely on trade secrets, know-how, continuing technological innovations and licensing opportunities to develop and maintain our competitive position. We attempt to protect our proprietary technology in large part by confidentiality agreements with our employees, consultants and other contractors. We cannot assure you, however, that these agreements will not be breached, that we would have adequate remedies for any breach, that these agreements will be enforceable, or that competitors will not gain access to, or independently discover, our trade secrets. We cannot assure you that others will not independently develop substantially equivalent proprietary information or be issued patents that may prevent the sale of our products or know-how or require licensing and the payment of significant fees or royalties by us in order to produce our products. Costly and time-consuming litigation could be necessary to enforce and determine the scope of our proprietary rights, and failure to obtain or maintain trade secret protection could adversely affect our competitive business position. Moreover, we cannot assure you that our technology does not infringe upon any valid claims of patents that other parties own.

We license certain of our material technology and trademarks from third parties, including patents related to Lidoderm ^® from Teikoku and Hind Health Care, Inc. (Hind). We cannot guarantee that such licenses will be renewed at the expiration of their term, if subject to renewal, or that the licensors will not exercise termination rights in connection with those licenses. The loss of any of our material licenses may have a material adverse effect on our business.

In the future, if we were found to be infringing on a patent owned by a third party, we might have to seek a license from such third party to use the patented technology. We cannot assure you that, if required, we would be able to obtain such a license on terms acceptable to us, if at all. If a third party brought a legal action against us or our licensors, we could incur substantial costs in defending ourselves, and we cannot assure you that such an action would be resolved in our favor. If such a dispute were to be resolved against us, we could be subject to significant damages, and the testing, manufacture or sale of one or more of our technologies or proposed products, if developed, could be enjoined.

We cannot assure you as to the degree of protection any patents will afford, whether the PTO will issue patents or whether we will be able to avoid violating or infringing upon patents issued to others or that others will not manufacture and distribute our patented products upon expiration of the applicable patents. Though we enter into confidentiality agreements and non-compete agreements, these agreements may be of limited effectiveness, and therefore it may be difficult for us to protect our trade secrets.

We may incur significant liability if it is determined that we are promoting or have in the past promoted the “off-label” use of drugs or medical devices.

Companies may not promote drugs or medical devices for “off-label” uses – that is, uses that are not described in the product’s labeling and that differ from those that were approved or cleared by the FDA. Under what is known as the “practice of medicine,” physicians and other healthcare practitioners may prescribe drug products and use medical devices for off-label or unapproved uses, and such uses are common across some medical specialties. Although the FDA does not regulate a physician’s choice of medications, treatments or product uses, the FFDCA, and FDA regulations significantly restrict permissible communications on the subject of off-label uses of drug products and medical devices by pharmaceutical and medical device companies. The FDA, FTC, OIG of the Department of HHS, the Department of Justice (DOJ) and various state Attorneys General actively enforce laws and regulations that prohibit the promotion of off-label uses. A company that is found to have improperly promoted off-label uses may be subject to significant liability, including civil fines, criminal fines and penalties, civil damages and exclusion from federal funded healthcare programs such as Medicare and Medicaid as well as potential liability under the federal False Claims Act and state false claims acts. Conduct giving rise to such liability could also form the basis for private civil litigation by third-party payors or other persons allegedly harmed by such conduct.

Notwithstanding the regulatory restrictions on off-label promotion, the FDA’s regulations and judicial case law allow companies to engage in some forms of truthful, non-misleading, and non-promotional speech concerning the off-label uses of their products. The Company has endeavored to establish and implement extensive compliance programs in order to instruct employees on complying with the relevant advertising and promotion legal requirements. Nonetheless, the FDA, HHS-OIG, the DOJ and/or the state Attorneys General, and qui tam relators may take the position that the Company is not in compliance with such requirements, and, if such non-compliance is proven, we may be subject to significant liability, including administrative, civil and criminal penalties and fines. In addition, our management’s attention could be diverted from our business operations and our reputation could be damaged.

We have significant goodwill and other intangible assets. Consequently, potential impairment of goodwill and other intangibles may significantly impact our profitability.

Goodwill and other intangibles represent a significant portion of our assets. As of December 31, 2013 and 2012 , goodwill and other intangibles comprised approximately 49% and 59% , respectively, of our total assets. Goodwill and other intangible assets are subject to an impairment analysis whenever events or changes in circumstances indicate the carrying amount of the asset may not be recoverable. Additionally, goodwill and indefinite-lived assets are subject to an impairment test at least annually. The procedures and assumptions used in our goodwill and indefinite-lived intangible assets impairment testing, and the results of our testing, are discussed in Part II, Item 7. of this report "Management's Discussion and Analysis of Financial Condition and Results of Operations" under the captions " CRITICAL ACCOUNTING POLICIES AND ESTIMATES " and " RESULTS OF OPERATIONS ".

Events giving rise to impairment of goodwill or other intangible assets are an inherent risk in the pharmaceutical and medical device industries and cannot be predicted. As a result of the significance of goodwill and other intangible assets, our results of operations and financial position in a future period could be negatively impacted should an impairment of our goodwill or other intangible assets occur.

We may incur liability if our support of continuing medical or health education programs and/or product promotions are determined, or are perceived, to be inconsistent with regulatory requirements.

Product promotion educational activities, support of continuing medical education programs, and other interactions with health care professionals must be conducted in a manner consistent with the FDA regulations and the Anti-Kickback Statute (described below). The FDA has stated that it will provide further guidance to industry on advertising and promotion regulation. In this regard, in December 2011, the FDA issued a draft guidance document on responding to unsolicited requests for off-label information about a drug or device, which suggests limits on a company's ability to respond, and in March 2012 issued a draft guidance on pre-dissemination review of direct-to-consumer TV advertising. These and other statements of the FDA interpreting the FFDCA and the FDA's regulatory authority may place further limits and restrictions on the advertising of our products. Although we endeavor to follow the applicable requirements, should it be determined that we have not appropriately followed the requirements, the government may initiate an action against us which may result in significant liability, including administrative, civil and criminal sanctions. Such penalties could have a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, management’s attention could be diverted and our reputation could be damaged.

We are subject to various regulations pertaining to the marketing of our products and services .

We are subject to various federal and state laws pertaining to healthcare fraud and abuse, including prohibitions on the offer of payment or acceptance of kickbacks or other remuneration for the purchase of our products and services, including inducements to potential patients to request our products and services. Specifically, the federal Anti-Kickback Statute prohibits persons or entities from knowingly and willfully soliciting, receiving, offering or providing remuneration, directly or indirectly, to induce either the referral of an individual, or the furnishing, recommending, or arranging for a good or service, for which payment may be made under a federal healthcare program such as the Medicare and Medicaid programs. Due to recent legislative changes, violations of the Anti-

Kickback Statute also carry potential federal False Claims Act liability. Because of the sweeping language of the federal Anti-Kickback Statute, many potentially beneficial business arrangements would be prohibited if the statute were strictly applied. To avoid this outcome, the Department of Health and Human Services’ Office of Inspector General has published regulations – known as safe harbors– that identify exceptions or exemptions to the statute’s prohibitions. Arrangements that do not fit within the safe harbors are not automatically deemed to be illegal, but must be evaluated on a case-by-case basis for compliance with the statute. Additionally, many states have adopted laws similar to the federal Anti-Kickback Statute. Some of these state prohibitions apply to referral of patients for healthcare items or services reimbursed by any third-party payer, not only the Medicare and Medicaid programs, and do not contain identical safe harbors.

We seek to comply with these laws and to fit our relationships with customers and other referral sources within one of the defined safe harbors. We are unaware of any violations of these laws. However, due to the breadth of the statutory provisions and the absence of uniform guidance in the form of regulations or court decisions, there can be no assurance that our practices will not be challenged under anti-kickback or similar laws. Violations of such restrictions may be punishable by civil and/or criminal sanctions, including fines and civil monetary penalties, as well as the possibility of exclusion from participation in U.S. federal and state healthcare programs (including Medicaid and Medicare). Any liability from such a violation could have a material adverse effect on our business, financial condition, results of operations and cash flows.

In addition, the FDA has the authority to regulate the claims we make in marketing our prescription drug and medical device products to provide that such claims are true, not misleading, supported by scientific evidence and consistent with the product’s approved or cleared labeling. Failure to comply with FDA requirements in this regard could result in, among other things, suspensions or withdrawal of approvals, product seizures, injunctions against the manufacture, holding, distribution, marketing and sale of a product, and civil and criminal sanctions.

Also, the federal False Claims Act prohibits persons from knowingly filing, or causing to be filed, a false claim to, knowingly concealing or knowingly and improperly avoiding or decreasing an obligation to pay or transmit money or property to, or the knowing use of false statements to obtain payment from, the government. When an entity is determined to have violated the False Claims Act, it may be required to pay up to three times the actual damages sustained by the government, plus civil penalties for each separate false claim. Various states have also enacted laws modeled after the federal False Claims Act. Private whistleblower plaintiff’s and federal and state authorities recently have brought actions against drug and device manufacturers alleging that the manufacturers’ activities constituted causing healthcare providers to submit false claims, alleging that the manufacturers themselves made false or misleading statements to the federal government, alleging that the manufacturers improperly promoted their products for off-label uses not approved by the FDA, or offered inducements to referral sources that are prohibited by the federal Anti-Kickback Statute, and alleging that the manufacturers caused improper claims to be submitted for allegedly unapproved drugs or other products. To the extent we become the subject of any such investigations or litigation, it could be time-consuming and costly to us and could have a material adverse effect on our business. In addition, if our activities are found to violate federal or state False Claims Act statutes, it could have a material adverse effect on our business, financial conditions, results of operations and cash flows.

Many of our core products contain narcotic ingredients. As a result of reports of misuse or abuse of prescription narcotics, the sale of such drugs may be subject to new regulation, including the development and of REMS, which may prove difficult or expensive to comply with, and we and other pharmaceutical companies may face lawsuits.

Many of our core products contain narcotic ingredients. Misuse or abuse of such drugs can lead to physical or other harm. For example, in the past, reportedly widespread misuse or abuse of OxyContin ^® , a product of Purdue Pharma L.P., or Purdue, containing the narcotic oxycodone, resulted in the strengthening of warnings on its labeling. In addition, we believe that Purdue, the manufacturer of OxyContin ^® , faces or did face numerous lawsuits, including class action lawsuits, related to OxyContin ^® misuse or abuse. We may be subject to litigation similar to the OxyContin ^® suits related to any narcotic-containing product that we market.

The FDA or the DEA may impose new regulations concerning the manufacture, storage, transportation, scheduling and sale of prescription narcotics. Such regulations may include new labeling requirements, the development and implementation of formal REMS, restrictions on prescription and sale of these products and mandatory reformulation of our products in order to make abuse more difficult. On September 27, 2007, Congress passed legislation authorizing the FDA to require companies to undertake post-approval studies in order to assess known or signaled potential serious safety risks and to make any labeling changes necessary to address safety risks. Congress also empowered the FDA to require companies to formulate REMS to confirm a drug’s benefits outweigh its risks. On April 19, 2011, the FDA issued letters to manufacturers of long-acting and extended-release opioid drug products requiring them to develop and submit to the FDA a post-market REMS plan to require that training is provided to prescribers of these products, and that information is provided to prescribers that they can use in counseling patients about the risks and benefits of opioid drug use. We received a REMS notification letter from the FDA to develop the REMS education and training program for prescribers for our Opana ^® ER, morphine sulfate ER, and oxycodone ER drug products. On December 9, 2011, the FDA approved our interim REMS for Opana ^® ER, which was subsequently superseded by the class-wide extended-release/long-acting REMS approved on July 9, 2012. The goal of this REMS is to reduce serious adverse outcomes resulting from inappropriate prescribing, misuse and abuse of extended-release or long-acting opioid analgesics while maintaining patient access to pain medications. The REMS includes a Medication Guide, Elements to Assure Safe Use and annual REMS Assessment Reports. The Obama administration has also

released a comprehensive action plan to reduce prescription drug abuse, which may include proposed legislation to amend existing controlled substances laws to require health care practitioners who request DEA registration to prescribe controlled substances to receive training on opioid prescribing practices as a condition of registration. In addition, state health departments and boards of pharmacy have authority to regulate distribution and may modify their regulations with respect to prescription narcotics in an attempt to curb abuse. In either case, any such new regulations or requirements may be difficult and expensive for us to comply with, may delay our introduction of new products, may adversely affect our total revenues and may have a material adverse effect on our business, results of operations, financial condition and cash flows.

The pharmaceutical and medical device industry is heavily regulated, which creates uncertainty about our ability to bring new products to market and imposes substantial compliance costs on our business.

Federal and state governmental authorities in the U.S., principally the FDA, impose substantial requirements on the development, manufacture, holding, labeling, marketing, advertising, promotion, distribution and sale of therapeutic pharmaceutical and medical device products through lengthy and detailed laboratory and clinical testing and other costly and time-consuming procedures. With respect to pharmaceutical products, the submission of an NDA or ANDA to the FDA with supporting clinical safety and efficacy data, for example, does not guarantee that the FDA will grant approval to market the product. Meeting the FDA’s regulatory requirements to obtain approval to market a drug product typically takes many years, varies substantially based upon the type, complexity and novelty of the pharmaceutical product, and the application process is subject to uncertainty. The NDA approval process for a new product varies in time, generally requiring a minimum of 10 months, but could also take several years from the date of application. The timing for the ANDA approval process for generic products is difficult to estimate and can vary significantly. NDA approvals, if granted, may not include all uses (known as indications) for which a company may seek to market a product. The FDA may also require companies to conduct post-approval studies. The FDA also requires companies to undertake post-approval surveillance regarding their drug products and to report adverse events.

With respect to medical devices, such as those manufactured by and AMS, before a new medical device, or a new use of, or claim for, an existing product can be marketed, it must first receive either premarket clearance under Section 510(k) of the FFDCA, or premarket approval, or PMA, from the FDA, unless an exemption applies. In the 510(k) premarket clearance process, the FDA must determine that the proposed device is “substantially equivalent” to a device legally on the market, known as a “predicate” device, with respect to intended use, technology and safety and effectiveness to clear the proposed device for marketing. Clinical data is sometimes required to support a showing of substantial equivalence. The PMA pathway requires an applicant to demonstrate the safety and effectiveness of the device for its intended use based, in part, on extensive data including, but not limited to, technical, preclinical, clinical trial, manufacturing and labeling data. The PMA process is typically required for devices that are deemed to pose the greatest risk, such as life-sustaining, life-supporting or implantable devices. Both the 510(k) and PMA processes can be expensive and lengthy and entail significant user fees in connection with FDA's application review. The FDA also has authority under the FFDCA to require a manufacturer to conduct post-market surveillance of a Class II or Class III device. AMS’s currently commercialized products have received premarket clearance or PMA from the FDA under Section 510(k) or 515 of the FFDCA.

On October 20, 2008, the FDA issued a Public Health Notification regarding potential complications associated with transvaginal placement of surgical mesh to treat POP and SUI. The notification provides recommendations and encourages physicians to seek specialized training in mesh procedures, to advise their patients about the risks associated with these procedures and to be diligent in diagnosing and reporting complications.

In July 2011, FDA issued an update to the October 2008 Public Health Notification regarding mesh to further advise the public and the medical community of the potential complications associated with transvaginal placement of surgical mesh to treat POP and SUI. In this July 2011 update, the FDA maintained that adverse events are not rare, as previously reported, and questioned the relative effectiveness of transvaginal mesh as a treatment for POP as compared to non-mesh surgical repair. The July 2011 notification continued to encourage physicians to seek specialized training in mesh procedures, to consider and to advise their patients about the risks associated with these procedures and to be diligent in diagnosing and reporting complications. FDA also convened an advisory panel which met on September 8-9, 2011 to further address the safety and effectiveness of transvaginal surgical mesh used to treat POP and SUI. At the conclusion of the meetings, the advisory panel recommended reclassifying transvaginal mesh products used to treat POP to Class III devices (premarket approval) and recommended that manufacturers of these products be required to conduct additional post-market surveillance studies. The advisory panel recommended that transvaginal surgical mesh products used to treat SUI remain as Class II devices. Regarding retropubic and transobturator (TOT) slings, the advisory panel recommended that no additional post-market surveillance studies are necessary. Regarding mini-slings, the advisory panel recommended premarket study for new devices and additional post-market surveillance studies.

On January 3, 2012, the FDA ordered manufacturers of transvaginal surgical mesh used for pelvic organ prolapse and of single incision mini-slings for urinary incontinence, such as AMS, to conduct post-market safety studies and to monitor adverse event rates relating to the use of these products. AMS received nineteen study orders, of which sixteen have been put on hold for various commercial reasons and three studies for pelvic floor repair and mini-sling products remain active. AMS is continuing to work with the FDA to comply with these outstanding orders. In its order, the FDA also noted that it is still considering the recommendation of an advisory committee, made on September 9, 2011, that urogynecological surgical mesh for transvaginal repair of pelvic organ prolapse

be reclassified from Class II to Class III. Finally, as discussed, on March 27, 2013, the FDA updated its Urogynecologic Surgical Mesh Implant webpage to include additional information about the use of mesh for repair of stress urinary incontinence.

Failure to comply with applicable regulatory requirements can result in, among other things, suspensions or withdrawals of approvals or clearances, seizures or recalls of products, injunctions against the manufacture, holding, distribution, marketing and sale of a product, and civil and criminal sanctions. Furthermore, changes in existing regulations or the adoption of new regulations could prevent us from obtaining, or affect the timing of, future regulatory approvals or clearances. Meeting regulatory requirements and evolving government standards may delay marketing of our new products for a considerable period of time, impose costly procedures upon our activities and result in a competitive advantage to larger companies that compete against us.

As part of its on-going quality program, AMS is engaged in a review of its quality systems, including its process validation procedures for many of its products, and is implementing a variety of enhancements to such systems, controls and procedures. In particular, because certain of AMS’s products are legacy products that have been in use for 15 to 20 years, they may require enhancements of AMS’s procedures, including additional remedial efforts, which could result in added costs.

We cannot assure you that the FDA or other regulatory agencies will approve or clear for marketing any products developed by us, on a timely basis, if at all, or, if granted, that approval will not entail limiting the indicated uses for which we may market the product, which could limit the potential market for any of these products.

Based on scientific developments, post-market experience, or other legislative or regulatory changes, the current FDA standards of review for approving new pharmaceutical and medical device products, or new indications or uses for approved or cleared products, are sometimes more stringent than those that were applied in the past. For example, in 2011, the FDA’s Center for Devices and Radiological Health, or CDRH, unveiled a plan of 25 action items it intended to implement during 2011 relating to the 510(k) premarket notification process for bringing medical devices to market. Among the actions the FDA indicated it plans to take were to issue guidance documents to clarify when clinical data should be submitted in support of a premarket notification submission, to clarify the review of submissions that use “multiple predicates” in a premarket notification submission, to clarify when modifications to a device require a new 510(k), and other guidance documents. The plan included other intended measures such as streamlining the review of innovative lower-risk products though the de novo review process, and establishing a Center Science Council of senior FDA experts to enhance science-based decision-making in 510(k) reviews. The FDA announced that it intended to refer to the Institute of Medicine, or IOM, for further review and consideration of other significant actions, such as whether or not to define the scope and grounds for the exercise of authority to partially or fully rescind a 510(k) marketing clearance, to clarify and consolidate the concepts of “indications for use” and “intended use,” to clarify when a device should no longer be available as a “predicate” to support a showing of substantial equivalence, whether to develop guidance on a new class of devices, called “class IIb,” for which additional data would be necessary to support a 510(k) determination.

On July 29, 2011, the IOM released its report, which recommended that the FDA move towards replacing the current 510(k) review process, which is based on “substantial equivalence” determinations, with a new “integrated premarket and post-market regulatory framework” that provides a reasonable assurance of safety and efficacy. The IOM also recommended that the FDA prioritize enhancement of its post-market surveillance program. The IOM also stated that it was unable to study fully the seven specific actions referred to it by the FDA because the requests came at the end of its review. The FDA decided not to act on the IOM recommendation to replace the 510(k) substantial equivalence framework, but since January 2011, CDRH has issued numerous guidance documents and proposed and final regulations impacting all medical devices (PMA and 510(k)), that have the potential to significantly impact how the FDA regulates medical devices. These include issuing guidance on data requirements for pivotal clinical investigations for medical devices, on CDHR's evaluation of substantial equivalence in premarket notification 510(k) submissions, on presubmission meetings for investigational device exemption (IDEs), including with regard to multiple predicate devices, and on its decisions on whether and how to approve a device clinical study, among other draft guidance. While the FDA issued and withdrew (pursuant to a requirement of the MDUFMA legislation), a draft guidance on when device modifications require a new 510(k), it plans to issue another draft guidance on device modification requirements. In addition, the FDA issued a final rule that will require a unique identifier on distributed devices for tracking purposes, and a final rule that revises and expands medical device registration and listing requirements. Further, pursuant to the March 2010 healthcare reform law, a medical device tax went into effect January 1, 2013, for devices listed with the FDA.

The extent and how the FDA will implement some or all of its planned action items, draft guidance and proposed and final rules is unknown at this time. These actions could have a significant effect on the cost of applying for and maintaining applications under the 510(k) clearance mechanism, on the criteria required for achieving clearance for additional uses of existing devices or new 510(k) devices, and for the marketing of medical devices. Further, some new or evolving review standards or conditions for approval or clearance were not applied to many established products currently on the market, including certain opioid products. As a result, the FDA does not have as extensive safety databases on these products as on some products developed more recently. Accordingly, we believe the FDA has expressed an intention to develop such databases for certain of these products, including many opioids.

In particular, the FDA has expressed interest in specific chemical structures that may be present as impurities in a number of opioid narcotic active pharmaceutical ingredients, such as oxycodone, which based on certain structural characteristics and laboratory tests may indicate the potential for having mutagenic effects.

More stringent controls of the levels of these impurities have been required and may continue to be required for FDA approval of drug products containing these impurities. Also, labeling revisions, formulation or manufacturing changes and/or product modifications may be necessary for new or existing products containing such impurities. The FDA’s more stringent requirements together with any additional testing or remedial measures that may be necessary could result in increased costs for, or delays in, obtaining approval for certain of our products in development. Although we do not believe that the FDA would seek to remove a currently marketed product from the market unless such mutagenic effects are believed to indicate a significant risk to patient health, we cannot make any such assurance.

In addition, on September 27, 2007, through passage of the Food and Drug Administration Amendments Act of 2007, or FDAAA, Congress passed legislation authorizing the FDA to require companies to undertake additional post-approval studies in order to assess known or signaled potential serious safety risks and to make any labeling changes necessary to address safety risks. Congress also empowered the FDA to require companies to formulate REMS to confirm a drug’s benefits outweigh its risks.

The FDA’s exercise of its authority under the FFDCA could result in delays or increased costs during product development, clinical trials and regulatory review, increased costs to comply with additional post-approval regulatory requirements and potential restrictions on sales of approved products. Foreign regulatory agencies often have similar authority and may impose comparable requirements and costs. Post-marketing studies, whether conducted by us or by others and whether mandated by regulatory agencies or voluntary, and other emerging data about marketed products, such as adverse event reports, may also adversely affect sales of our products. Further, the discovery of significant safety or efficacy concerns or problems with a product in the same therapeutic class as one of our products that implicate or appear to implicate the entire class of products could have an adverse effect on sales of our product or, in some cases, result in product withdrawals. Likewise, manufacturing issues or problems at a supplier or third party manufacturer of our products could have an adverse effect on sales of our products, and could lead to product recalls or product shortages. Furthermore, new data and information, including information about product misuse at the user level, may lead government agencies, professional societies, practice management groups or patient or trade organizations to recommend or publish guidance or guidelines related to the use of our products, which may lead to reduced sales of our products.

The FDA and the DEA have important and complementary responsibilities with respect to our business. The FDA administers an application and post-approval monitoring process to assure that marketed products are safe, effective and consistently of uniform, high quality. The DEA administers registration, drug allotment and accountability systems to assure against loss and diversion of controlled substances. Both agencies have trained investigators that routinely, or for cause, conduct inspections, and both have authority to seek to enforce their statutory authority and regulations through administrative remedies as well as civil and criminal enforcement actions.

The FDA regulates and monitors drug and device clinical trials to help provide human subject protection and the quality of clinical trial data used to support marketing applications. The FDA also regulates the facilities, processes and procedures used to manufacture and market pharmaceutical and medical device products in the U.S. Manufacturing facilities must be registered with the FDA and all products made in such facilities must be manufactured in accordance with “current good manufacturing practices" (cGMP), regulations enforced by the FDA. Compliance with clinical trial requirements and cGMP regulations requires the dedication of substantial resources and requires significant expenditures. The FDA periodically inspects clinical trial operations, and both our third party and owned manufacturing facilities and procedures to assure compliance. The FDA may place a hold on a clinical trial, and may cause a suspension or withdrawal of product approvals if regulatory standards are not maintained. In the event an approved manufacturing facility for a particular drug or medical device is required by the FDA to curtail or cease operations, or otherwise becomes inoperable, or a third party contract manufacturing facility faces manufacturing problems, obtaining the required FDA authorization to manufacture at the same or a different manufacturing site could result in production delays, which could adversely affect our business, results of operations, financial condition and cash flow.

The FDA is authorized to perform inspections under the FFDCA. During inspections of factory or manufacturing facilities, the FDA utilizes a Form FDA 483 to document and communicate observations made during inspections. The observations made on the Form 483 are not final and are not a finding as to whether the specific facility in question is compliant. Our Qualitest Pharmaceuticals subsidiary operates two main manufacturing facilities, one site is located in Huntsville, Alabama and the second site is located in Charlotte, North Carolina. Both sites have been inspected by the FDA.

Following an FDA inspection of the solid dose manufacturing facility in Charlotte, North Carolina, that took place from January 14, 2014 through February 14, 2014, our subsidiary, Qualitest Pharmaceuticals, received a Form 483 Notice of Inspectional Observations dated February 14, 2014, listing observations of the inspector focused on improper adherence to established processes and procedures.  Qualitest Pharmaceuticals is currently drafting a comprehensive response to the observations.

Following an FDA inspection of the tablet manufacturing facility in Huntsville, Alabama in May 2013, our subsidiary, Qualitest Pharmaceuticals, received a Form 483 Notice of Inspectional Observations dated May 30, 2013. The observations focused on investigations and the proper follow-up and tablet counters.  A comprehensive response was provided to the FDA on June 12, 2013 addressing each observation and providing corrective actions and appropriate remediation plans.  The final corrective action report was sent to the FDA in September 2013.  No further feedback from the FDA has been received. 

The FDA also inspected the liquids facility of our Qualitest Pharmaceuticals subsidiary in Huntsville, Alabama in March 2013, with no 483s issued.

In February 2013, the FDA conducted an inspection of AMS's Minnetonka, Minnesota facility.  Following such inspection, the FDA issued two observations on a Form 483 Notice of Inspectional Observations.  Both observations related to timeliness of complaint handling procedures. AMS provided a written response to the FDA on February 28, 2013 detailing proposed corrective actions.  AMS has provided the FDA updates on the progress on these corrective actions, which are substantially complete.  In February 2014, the FDA conducted another inspection of AMS's Minnetonka, Minnesota facility. Following such inspection, the FDA issued three observations on a Form 483.  These observations relate to process validation, and timeliness of completion of post market surveillance reports and risk management reports.  AMS is committed to resolving these issues and is currently drafting a comprehensive response to the observations, detailing proposed corrective actions.  The Minnetonka, Minnesota facility will continue to manufacture products while AMS works with the FDA to address these observations. 

The stringent DEA regulations on our use of controlled substances include restrictions on their use in research, manufacture, distribution and storage. A breach of these regulations could result in imposition of civil penalties, refusal to renew or action to revoke necessary registrations, or other restrictions on operations involving controlled substances. Failure to comply with applicable legal requirements subjects the Qualitest Pharmaceuticals facilities to possible legal or regulatory action, including shutdown, which may adversely affect their ability to supply us with product. Were we not able to manufacture products at the Qualitest Pharmaceuticals facilities because of regulatory, business or any other reasons, the manufacture and marketing of these products would be interrupted. This could have a negative impact on our business, results of operation, financial condition, cash flows and competitive position. See also the risk described under the caption “The DEA limits the availability of the active ingredients used in many of our current products and products in development, as well as the production of these products, and, as a result, our procurement and production quotas may not be sufficient to meet commercial demand or complete clinical trials."

We cannot determine what effect changes in regulations or legal interpretations or requirements by the FDA or the courts, when and if promulgated or issued, may have on our business in the future. Changes could, among other things, require different labeling, monitoring of patients, interaction with physicians, education programs for patients or physicians, curtailment of necessary supplies, or limitations on product distribution. These changes, or others required by the FDA or DEA could have an adverse effect on the sales of these products. The evolving and complex nature of regulatory science and regulatory requirements, the broad authority and discretion of the FDA and the generally high level of regulatory oversight results in a continuing possibility that, from time to time, we will be adversely affected by regulatory actions despite our ongoing efforts and commitment to achieve and maintain full compliance with all regulatory requirements.

Implementation by the FDA of certain specific public advisory committee recommendations regarding acetaminophen use in both over-the-counter and prescription products could have an adverse material impact on sales of some of our pain relief products, including Percocet ^® and Endocet ^® .

The FDA held a public advisory committee meeting in June 2009 to discuss acetaminophen use in both over-the-counter and prescription products, the potential for liver injury, and potential interventions to reduce the incidence of liver injury. The panel’s recommendations included the banning of certain prescription painkillers which combine acetaminophen with an opiate narcotic, and lowering the maximum dose of over-the-counter painkillers containing acetaminophen. These recommendations were made following the release in May 2009 of a FDA report that found severe liver damage, and even death, can result from a lack of consumer awareness that acetaminophen can cause such injury. These recommendations were advisory in nature and the FDA was not bound to follow these recommendations.

On January 14, 2011, the FDA announced in the Federal Register that it was taking steps to reduce the maximum strength of acetaminophen in prescription combination drug products to help reduce or prevent the risk of liver injury from an unintentional overdose of acetaminophen. A variety of prescription combination drug products include acetaminophen, such as those that contain the opioids oxycodone hydrochloride or hydrocodone bitartrate and acetaminophen, among others. Specifically, the FDA announced that it was asking product sponsors to limit the maximum strength of acetaminophen per dosage unit of the prescription combination drug products to 325 mg over a three-year phase-out period. On January 14, 2014, FDA issued a recommendation that healthcare professionals discontinue prescribing and dispensing prescription combination products containing more than 325 milligrams of acetaminophen per dosage unit. The FDA also stated that it intends to initiate proceedings to withdraw approval of prescription combination drug products containing more than 325 mgs of acetaminophen per dosage unit pursuant to its authority under FFDCA. Among the products impacted by the FDA’s action are three Endo combination drug pain relief products: Percocet ^® , Endocet ^® and Zydone ^® ; and the Qualitest Pharmaceuticals combination drug pain relief products: butalbital/acetaminophen/caffeine, hydrocodone/

acetaminophen and oxycodone/acetaminophen. In addition, under additional authority granted to the FDA by the FDAAA, the FDA notified holders of approved NDAs and ANDAs that they would be required to modify the labeling of prescription acetaminophen drug products to include a Boxed Warning to include new safety information about acetaminophen and liver toxicity, and a Warning on the potential for allergic reactions. The Company has implemented several measures to comply with the FDA action. Specifically, any high dose prescription product containing more than 325 mg of acetaminophen will have an expiration date that will prevent saleable product remaining in the marketplace after January 2014. In addition, steps are being taken to increase production of similar low dose products, to provide uninterrupted supply to all customers as demand transitions to the alternate products. Nonetheless, these regulatory changes, or others required by the FDA, could have an adverse effect on our business, financial condition, results of operations, and cash flows.

Timing and results of clinical trials to demonstrate the safety and efficacy of products as well as the FDA’s approval of products are uncertain.

Before obtaining regulatory approvals for the sale of any of our new product candidates, we must demonstrate through preclinical studies and clinical trials that the product is safe and effective for each intended use. Preclinical and clinical studies may fail to demonstrate the safety and effectiveness of a product. Likewise, we may not be able to demonstrate through clinical trials that a product candidate’s therapeutic benefits outweigh its risks. Even promising results from preclinical and early clinical studies do not always accurately predict results in later, large scale trials. A failure to demonstrate safety and efficacy could or would result in our failure to obtain regulatory approvals.

The rate of patient enrollment sometimes delays completion of clinical studies. There is substantial competition to enroll patients in clinical trials and such competition has delayed clinical development of our products in the past. For example, patients may not enroll in clinical trials at the rate expected or patients may drop out after enrolling in the trials or during the trials. Delays in planned patient enrollment can result in increased development costs and delays in regulatory approval. In addition, we rely on collaboration partners that may control or make changes in trial protocol and design enhancements, or encounter clinical trial compliance-related issues, that may also delay clinical trials. Product supplies may be delayed or be insufficient to treat the patients participating in the clinical trials, or manufacturers or suppliers may not meet the requirements of the FDA or foreign regulatory authorities, such as those relating to cGMP. We also may experience delays in obtaining, or we may not obtain, required initial and continuing approval of our clinical trials from institutional review boards. We cannot assure you that we will not experience delays or undesired results in these or any other of our clinical trials.

We cannot assure you that the FDA or foreign regulatory agencies will approve, clear for marketing or certify any products developed by us, on a timely basis, if at all, or, if granted, that such approval will not subject the marketing of our products to certain limits on indicated use. The FDA or foreign regulatory authorities may not agree with our assessment of the clinical data or they may interpret it differently. Such regulatory authorities may require additional or expanded clinical trials. Any limitation on use imposed by the FDA or delay in or failure to obtain FDA approvals or clearances of products developed by us would adversely affect the marketing of these products and our ability to generate product revenue, which would adversely affect our financial condition and results of operations.

Before obtaining regulatory approvals for certain generic products, we must conduct limited clinical or other trials to show comparability to the branded products. A failure to obtain satisfactory results in these trials would prevent us from obtaining required regulatory approvals.

The success of our acquisition and licensing strategy is subject to uncertainty and any completed acquisitions or licenses may reduce our earnings, be difficult to integrate, not perform as expected or require us to obtain additional financing.

We regularly evaluate selective acquisitions and look to continue to enhance our product line by acquiring rights to additional products and compounds. Such acquisitions may be carried out through the purchase of assets, joint ventures and licenses or by acquiring other companies. However, we cannot assure you that we will be able to complete acquisitions that meet our target criteria on satisfactory terms, if at all. In particular, we may not be able to identify suitable acquisition candidates, and we may have to compete for acquisition candidates.

Our competitors may have greater resources than us and therefore be better able to complete acquisitions or may cause the ultimate price we pay for acquisitions to increase. If we fail to achieve our acquisition goals, our growth may be limited.

Acquisitions, such as acquisitions of Paladin and Boca, may expose us to additional risks and may have a material adverse effect on our profitability and cash flows. Any acquisitions we make may:

In addition, based on current acquisition prices in the pharmaceutical industry, acquisitions could decrease our net income per share and add significant intangible assets and related amortization or impairment charges. Our acquisition strategy may require us to obtain additional debt or equity financing, resulting in leverage, increased debt obligations as compared to equity, or dilution of ownership. We may not be able to finance acquisitions on terms satisfactory to us.

Further, if we are unable to maintain, on commercially reasonable terms, product, compound or other licenses that we have acquired, our ability to develop or commercially exploit our products may be inhibited.

Our growth and development will depend on developing, commercializing and marketing new products, including both our own products and those developed with our collaboration partners. If we do not do so successfully, our growth and development will be impaired.

Our future revenues and profitability will depend, to a significant extent, upon our ability to successfully commercialize new branded and generic pharmaceutical products and medical devices in a timely manner. As a result, we must continually develop, test and manufacture new products, and these new products must meet regulatory standards and receive requisite regulatory approvals. Products we are currently developing may or may not receive the regulatory approvals or clearances necessary for us to market them. Furthermore, the development and commercialization process is time-consuming and costly, and we cannot assure you that any of our products, if and when developed and approved, can be successfully commercialized. Some of our collaboration partners may decide to make substantial changes to a product’s formulation or design, may experience financial difficulties or have limited financial resources, any of which may delay the development, commercialization and/or marketing of new products. In addition, if a co-developer on a new product terminates our collaboration agreement or does not perform under the agreement, we may experience delays and, possibly, additional costs in developing and marketing that product.

We conduct research and development primarily to enable us to manufacture and market FDA-approved pharmaceuticals and devices in accordance with FDA regulations. Much of our drug development effort is focused on technically difficult-to-formulate products and/or products that require advanced manufacturing technology. Typically, research expenses related to the development of innovative compounds and the filing of NDAs for these products are significantly greater than those expenses associated with ANDAs for generic products. As we continue to develop new products, our research expenses will likely increase. Because of the inherent risk associated with research and development efforts in our industry, particularly with respect to new drugs, our research and development expenditures may not result in the successful introduction of FDA approved new pharmaceutical products. Also, after we submit an NDA or ANDA, the FDA may require that we conduct additional studies, including, depending on the product, studies to assess the product’s interaction with alcohol, and as a result, we may be unable to reasonably predict the total research and development costs to develop a particular product. Indeed, on September 27, 2007, Congress passed legislation authorizing the FDA to require companies to undertake post-approval studies in order to assess known or signaled potential serious safety risks and to make any labeling changes necessary to address safety risks. Congress also empowered the FDA to require companies to formulate REMS to confirm a drug’s benefits outweigh its risks.

Our generics business faces intense competition from brand-name companies that sell or license their own generic versions of our generic products or seek to delay the introduction of our generic products.

Brand-name pharmaceutical companies have taken aggressive steps to thwart competition from generic equivalents of their brand-name products. In particular, brand-name companies sell directly to the generics market or license their products for sale to the generics market through licensing arrangements or strategic alliances with generic pharmaceutical companies (so-called authorized generics). While there have been legislative proposals by members of Congress to limit the use of authorized generics, no significant regulatory approvals are currently required for a brand-name manufacturer to sell directly or through a third party to the generic market. Brand-name manufacturers do not currently face any other significant barriers to entry into such market. The introductions of these so-called “authorized generics” have had and may continue to have an adverse effect by reducing our generics market share and adversely affecting our profitability and cash flows.

In addition, brand-name companies continually seek new ways to delay generic introduction and decrease the impact of generic competition, such as filing new patents on drugs whose original patent protection is about to expire; filing an increasing number of patents that are more complex and costly to challenge; filing suits for patent infringement that automatically delay approval by the FDA; developing patented controlled release or other next generation products, which often reduces the demand for the generic version of the existing product for which we may be seeking approval or that we may be marketing; changing product claims and product labeling; developing and marketing as over-the-counter products those branded products that are about to face generic competition; or filing Citizen Petitions with the FDA seeking restraints on our products or seeking to prevent them from coming to market. These strategies may increase the costs and risks associated with our efforts to introduce generic products and may delay or prevent such introduction altogether.

Our revenues and profits from generic pharmaceutical products typically decline as a result of intense competition from other pharmaceutical companies.

Our generic products compete with branded products and with generic versions made by or for other manufacturers, such as Mallinckrodt Inc., Teva Pharmaceuticals Industries Ltd and Watson Pharmaceuticals, Inc. Net selling prices of generic drugs typically decline, often dramatically, as additional generic pharmaceutical companies, both domestic and foreign, receive approvals and enter the market for a given generic product and competition intensifies. When additional versions of one of our generic products enter the market, we generally lose market share and our selling prices and margins on that product decline. Because we are smaller than many of our full-line competitors in the generic pharmaceutical products sector, we may lack the financial and other resources needed to maintain our profit margins and market share in this sector. Our ability to sustain our sales and profitability on any generic product over time is affected by the number of new companies selling such product and the timing of their approvals.

If the efforts of manufacturers of branded pharmaceuticals to use litigation and legislative and regulatory means to limit the use of generics and certain other products are successful, sales of our generic products may suffer.

Pharmaceutical companies that produce patented brand products can employ a range of legal and regulatory strategies to delay the introduction of competing generics and other products to which we do not have a right of reference to all necessary preclinical and clinical data. Opposing such efforts or litigation actions can be costly and time-consuming and result in delays in the introduction of our products.

The products for which we are developing generic versions may be claimed by their manufacturer to be protected by one or more patents. If we file an ANDA to seek FDA approval of our generic version of such a drug, we are required to certify that any patent or patents listed as covering the approved listed drug are invalid, unenforceable or will not be infringed by our generic version. Similar certification requirements apply to new drug applications filed under Section 505(b)(2) of the FFDCA, where we rely on information to which we do not have a right of reference. Once the FDA accepts our ANDA or Section 505(b)(2) NDA, we are required to notify the brand manufacturer of this fact. The brand manufacturer then has 45 days from the receipt of the notice in which to file a suit for patent infringement. If it does so, the FDA is generally prevented from granting approval of the ANDA or Section 505(b)(2) NDA until the earliest of 30 months from the date the FDA accepted the application for filing, the conclusion of litigation in the generic’s favor or expiration of the patent(s).

The availability of third party reimbursement for our products is uncertain, and thus we may find it difficult to maintain current price levels. Additionally, the market may not accept those products for which third party reimbursement is not adequately provided.

Our ability to commercialize our products depends, in part, on the extent to which reimbursement for the costs of these products is available from government healthcare programs, private health insurers and others. We cannot be certain that, over time, third party payment for our products will be adequate for us to maintain price levels sufficient for realization of an appropriate return on our investment. Government payors, private insurers and other third party payers are increasingly attempting to contain healthcare costs by (1) limiting both coverage and the level of reimbursement (including adjusting co-pays) for products approved for marketing by the FDA, (2) refusing, in some cases, to provide any coverage for uses of approved products for indications for which the FDA has not granted marketing approval and (3) requiring or encouraging, through more favorable reimbursement levels or otherwise, the substitution of generic alternatives to branded products.

Examples of some of the major government healthcare programs include Medicare and Medicaid. The Medicare Prescription Drug Improvement and Modernization Act of 2003, or the Medicare Modernization Act, created Medicare Part D, a new prescription drug coverage program for people with Medicare through a new system of private market insurance providers beginning in January 2006. Although the new Part D benefit resulted in Medicare coverage for outpatient drugs previously not covered by Medicare, the new benefit has resulted in an increased use of formularies (listings of prescription drugs approved for use) such that, in the event a Medicare beneficiary’s medications are not listed on the applicable formulary, such Medicare beneficiary may not receive reimbursement for such medications. Moreover, once these formularies are established, a Medicare Part D plan is not obligated to pay for drugs omitted from a formulary, unless the beneficiary receives an exception, and the cost of these non-covered drugs will not be counted towards the annual out-of-pocket beneficiary deductible established by the Medicare Modernization Act. Also, formularies may have “tiers” where cost-sharing varies depending on the tier to which a particular drug is assigned. Further, since 2006, private insurance policies that supplement Medicare coverage, known as “Medigap” policies, no longer may include prescription drug coverage and therefore cannot be used to cover the cost of off-formulary medications. Our product mix is shifting towards products for aging demographics and, as a result, over time we will become increasingly dependent on Medicare. If our products are or become excluded from Part D plan formularies, or are placed on formulary tiers that require significant beneficiary cost-sharing, demand for our products might decrease and we may be forced to lower prices for our products, which may adversely affect our business, financial condition, results of operations and cash flows.

From time to time, state Medicaid programs review our products to assess whether such products should be subject to a prior authorization process, which processes vary state-by-state but generally require physicians prescribing the products to answer several questions prior to the product being dispensed. The institution of a prior authorization process may adversely impact the sales of the

related product in the state and depending on the state, may adversely affect our business and results of operations. On February 20, 2008, in connection with its Clinical Drug Review Program, the Pharmacy and Therapeutics Committee of the New York State Department of Health reviewed our product Lidoderm ^® and recommended that it be subject to a prior authorization process. As a result, on July 31, 2008, the New York State Department of Health placed Lidoderm ^® in its Clinical Drug Review Program, which is a specific program within its prior authorization program. There can be no assurance that such a process, or the implementation thereof, in New York State or elsewhere would not have a material adverse effect on our business, financial condition, results of operations and cash flows.

The Budget Control Act provided that if Congress failed to pass a deficit reduction plan by December 23, 2011, a process of sequestration would occur on January 2, 2013 which would result in across-the-board spending cuts to certain government programs, including Medicare, in order to meet the deficit reduction goal. Congress was able to delay sequestration when it passed the American Taxpayer Relief Act of 2012 (H.R. 8) until March 1, 2013. On April 1, 2013, however, Medicare provider payments were cut by two percent under the Budget Control Act of 2011. Although the Bipartisan Budget Act of 2013, signed into law on December 26, 2013, did not provide relief to the two percent sequestration reduction, it did implement 0.5% increase for physician services provided through March 31, 2014. 

If government and commercial third party payers do not provide adequate coverage and reimbursement levels for users of our products, the market acceptance of these products could be adversely affected. In addition, the following factors could significantly influence the purchase of pharmaceutical products, which would result in lower prices and a reduced demand for our products that might force us to reduce the price of these products to remain competitive:

In February, 2009, President Obama signed into law the American Recovery and Reinvestment Act of 2009, which appropriates $1.1 billion to fund comparative effectiveness research (CER) relating to healthcare treatments. In March 2010, the President signed healthcare reform legislation, which, among other things, created a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct CER. Although the concept of CER now has significant momentum, numerous unresolved and potentially contentious issues remain, and stakeholders are following implementation of these new laws closely. Depending on how CER is implemented, CER could possibly present regulatory and reimbursement issues under certain circumstances. For additional discussion of this healthcare reform legislation, see the risk described under the caption “While healthcare reform may increase the number of patients who have insurance coverage for our products, its cost containment measures may adversely affect reimbursement for our products."

Third party payors could refuse to reimburse healthcare providers for use of AMS’s current or future products, which could negatively impact our business, results of operations, financial condition and cash flows.

Third party payors are increasingly attempting to contain healthcare costs by limiting both coverage and the level of reimbursement of medical procedures and treatments, particularly for elective procedures, which would include a number of AMS’s product offerings. In addition, significant uncertainty exists as to the reimbursement status of newly approved healthcare products, which may impact whether customers purchase our products. Reimbursement rates vary depending on whether the procedure is performed in a hospital, ambulatory surgery center or physician’s office. Furthermore, healthcare regulations and reimbursement for medical devices vary significantly from country to country, particularly in Europe. AMS has experienced lower procedure volume levels, particularly in Europe, as a result of recent “austerity measures” or budget reduction measures adopted by certain European countries in response to growing budget deficits and volatile economic conditions and may experience lower levels of reimbursement with respect to AMS’s products in the future as a result.

Our reporting and payment obligations under the Medicaid Drug Rebate Program and other governmental drug pricing programs are complex and may involve subjective decisions. Any failure to comply with those obligations could subject us to penalties and sanctions.

We are subject to various federal and state laws pertaining to healthcare fraud and abuse, including prohibitions on the offer of payment or acceptance of kickbacks or other remuneration in return for the purchase of our products. Sanctions for violating these laws include criminal penalties and civil sanctions and possible exclusion from the Medicare, Medicaid, and other government healthcare programs. There can be no assurance that our practices will not be challenged under these laws in the future or that such a challenge would not have a material adverse effect on our business or results of operations.

We also are subject to federal and state laws prohibiting the presentation (or the causing to be presented) of claims for payment (by Medicare, Medicaid, or other third-party payers) that are determined to be false, fraudulent, or for an item or service that was not provided as claimed. These false claims statutes include the federal civil False Claims Act, which permits private persons to bring suit

in the name of the government alleging false or fraudulent claims presented to or paid by the government (or other violations of the statutes) and to share in any amounts paid by the entity to the government in fines or settlement. Such suits, known as qui tam actions, have increased significantly in the healthcare industry in recent years. These actions against healthcare companies, which do not require proof of a specific intent to defraud the government, may result in payment of fines and/or administrative exclusion from the Medicare, Medicaid, and/or other government healthcare programs.

We are subject to provisions that require us to enter into a Medicaid Drug Rebate Agreement and a 340B Pharmaceutical Pricing Agreement as a condition for having our products eligible for payment under Medicare Part B and Medicaid. We have entered into such agreements. In addition, we are required to report certain pricing information to the Centers for Medicare and Medicaid Services on a periodic basis to allow for accurate determination of rebates owed under the Medicaid Drug Rebate Agreement, ceiling prices under the 340B program and certain other government pricing arrangements, and reimbursement rates for certain drugs paid under Medicare Part B. On January 27, 2012, the Centers for Medicare and Medicaid Services issued a Proposed Rule to implement the Medicaid Drug Rebate provisions incorporated into the March 2010 healthcare reform law. The Proposed Rule has not been finalized yet, but we anticipate that if the Proposed Rule becomes final, it will require operational adjustments by the Company in order to maintain its compliance with applicable law. Changes included in the Proposed Rule that would revise how manufacturers are required to calculate Average Manufacturer Price (AMP) and Best Price, if they are included in the Final Rule may affect the quarterly amounts that the Company owes to state Medicaid programs through the Medicaid Drug Rebate program.

We and other pharmaceutical companies are defendants in a number of lawsuits filed by local and state government entities, alleging generally that we and numerous other pharmaceutical companies reported false pricing information in connection with certain drugs that are reimbursable by state Medicaid programs, which are partially funded by the federal government. In addition, a predecessor entity of Qualitest Pharmaceuticals and other pharmaceutical companies are defendants in a federal False Claims Act lawsuit brought by a qui tam relator alleging the submission (or the causing of the submission) of false claims for payments to be made through state Medicaid reimbursement programs for unapproved drugs or non-drugs. We intend to vigorously defend these lawsuits to which we are a party. Depending on developments in the litigation however, as with all litigation, there is a possibility that we will suffer adverse decisions or verdicts of substantial amounts, or that we will enter into monetary settlements in one or more of these actions as we recently did with a number of New York counties. Any unfavorable outcomes as a result of such litigation could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Government regulations regarding price reporting and rebate payment obligations are complex, and we are continually evaluating the methods that we use to calculate and report the amounts owed by us with respect to Medicaid and other government pricing programs. The federal Medicaid Drug Rebate Program, for example, requires that we make quarterly rebate payments to all states that offer a non-managed care-based Medicaid pharmacy benefit to their eligible citizens. Our calculations of these rebate payments are subject to review and challenge by various government agencies and authorities and it is possible that any such review could result either in material changes to the method used for calculating the amounts owed to the pertinent government agency (or agencies), or to the amounts themselves. In addition, because the methods for calculating reported prices are not fully specified in regulations or sub-regulatory guidance documents, our processes for these calculations and our judgments supporting these calculations involve, and will continue to involve, subjective decisions. Further, these calculations are subject to the risk of errors. As noted above, any governmental agency that commences an action, if successful, could impose, based on a claim of violation of the federal False Claims Act or similar state laws or otherwise, civil and/or criminal sanctions, including fines, penalties and possible exclusion from participation in federal healthcare programs (including Medicaid and Medicare). Some of the applicable laws impose liability even in the absence of specific intent to defraud. Furthermore, should there be ambiguity with regard to how to properly calculate and report payments, or even in the absence of such ambiguity, a governmental authority may take a position contrary to a position we have taken, may demand payments for rebates owed based upon the government’s pricing determinations, and may seek to impose civil and/or criminal sanctions. If such events occurred, any such governmental penalties, sanctions or retrospective revisions to payments already made could have a material adverse effect on our business, financial position, results of operations and cash flows, and could cause the market value of our common stock to decline.

Once approved, there is no guarantee that the market will accept our future products, and regulatory requirements could limit the commercial usage of our products.

Even if we obtain regulatory approvals or clearances, uncertainty exists as to whether the market will accept our products. A number of factors may limit the market acceptance of our products, including the timing of regulatory approvals or clearances and market entry relative to competitive products, the availability of alternative products, the price of our products relative to alternative products, the availability of third party reimbursement and the extent of marketing efforts by third party distributors or agents that we retain. We cannot assure you that our products will receive market acceptance in a commercially viable period of time, if at all. We cannot be certain that any investment made in developing products will be recovered, even if we are successful in commercialization. To the extent that we expend significant resources on research and development efforts and are not able, ultimately, to introduce successful new products as a result of those efforts, our business, financial position, results of operations and cash flows may be materially adversely affected, and the market value of our common stock could decline. In addition, many of our products contain

narcotic ingredients that carry stringent record keeping obligations, strict storage requirements and other limitations on these products’ availability, which could limit the commercial usage of these products.

Our customer concentration may adversely affect our financial condition and results of operations.

We primarily sell our products to a limited number of wholesale drug distributors and large pharmacy chains. In turn, these wholesale drug distributors and large pharmacy chains supply products to pharmacies, hospitals, governmental agencies and physicians. Total revenues from customers who accounted for 10% or more of our total revenues during the three years ended December 31 are as follows:

Revenues from these customers are included within our Endo Pharmaceuticals and Qualitest segments. If we were to lose the business of any of these customers, or if any were to experience difficulty in paying us on a timely basis, our total revenues, profitability and cash flows could be materially and adversely affected.

We are currently dependent on outside manufacturers for the manufacture of a significant amount of our products; therefore, we have and will continue to have limited control of the manufacturing process and related costs. Certain of our manufacturers currently constitute the sole source of one or more of our products, including Teikoku, our sole source of Lidoderm ^® .

Third party manufacturers currently manufacture a significant amount of our products pursuant to contractual arrangements. Certain of our manufacturers currently constitute the sole source of our products. For example, Teikoku is our sole source of Lidoderm ^® and Grünenthal is our sole source of our formulation of Opana ^® ER, designed to be crush-resistant. Because of contractual restraints and the lead-time necessary to obtain FDA approval, and possibly DEA registration, of a new manufacturer, replacement of any of these manufacturers may be expensive and time consuming and may cause interruptions in our supply of products to customers. As a result, any such delay could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Because most of our products are manufactured by third parties, we have a limited ability to control the manufacturing process or costs related to this process. Increases in the prices we pay our manufacturers, interruptions in our supply of products or lapses in quality could adversely impact our margins, profitability and cash flows. We are reliant on our third party manufacturers to maintain the facilities at which they manufacture our products in compliance with FDA, DEA, state and local regulations. If they fail to maintain compliance with FDA, DEA or other critical regulations, they could be ordered to cease manufacturing, or product may be recalled, which would have a material adverse impact on our business, results of operations, financial condition and cash flows. For example, in December 2011, Novartis Consumer Health, Inc.’s Lincoln, Nebraska manufacturing facility was temporarily shut down to facilitate its implementation of certain manufacturing process improvements, resulting in short-term supply constraints for certain Endo analgesic products which had been manufactured at this facility prior to the shutdown. Additionally, if any facility that manufactures our products experiences a natural disaster, we could experience a material adverse impact on our business, results of operations, financial condition and cash flows. In addition to FDA and DEA regulation, violation of standards enforced by the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) and their counterpart agencies at the state level, could slow down or curtail operations of third party manufacturers.

In addition, we may consider entering into additional manufacturing arrangements with third party manufacturers. In each case, we will incur significant costs in obtaining the regulatory approvals and taking the other steps necessary to begin commercial production by these manufacturers. If the market for the products manufactured by these third parties substantially contracts or disappears, we will continue to be financially obligated under these contracts, an obligation which could have a material adverse effect on our business.

We are dependent on third parties to supply all raw materials used in our products and to provide services for certain core aspects of our business. Any interruption or failure by these suppliers, distributors and collaboration partners to meet their obligations pursuant to various agreements with us could have a material adverse effect on our business, results of operations, financial condition and cash flows.

We rely on third parties to supply all raw materials used in our products. In addition, we rely on third party suppliers, distributors and collaboration partners to provide services for certain core aspects of our business, including manufacturing, warehousing, distribution, customer service support, medical affairs services, clinical studies, sales and other technical and financial services. All third party suppliers and contractors are subject to FDA, and very often DEA, requirements. Our business and financial viability are dependent on the continued supply by these third party suppliers, the regulatory compliance of these third parties, and on

the strength, validity and terms of our various contracts with these third party manufacturers, distributors and collaboration partners. Any interruption or failure by our suppliers, distributors and collaboration partners to meet their obligations pursuant to various agreements with us could have a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, we have entered into minimum purchase requirement contracts with some of our third party raw material suppliers. If the market for the products that utilize these raw materials substantially contracts or disappears, we will continue to be financially obligated under these contracts and meeting such obligations could have a material adverse effect on our business.

For example, our subsidiary AMS currently relies on single- or sole-source suppliers for certain raw materials and certain components used in its male prostheses, many of its female products, its GreenLight ^TM laser systems, and for the TherMatrx ^® disposables. These sources of supply could encounter manufacturing difficulties or may unilaterally decide to stop supplying AMS because of product liability concerns or other factors. We and AMS cannot be certain that we would be able to timely or cost-effectively replace any of these sources upon any disruption due to the need to qualify alternate designs or sources. Any interruption or failure by these sources to supply raw materials or components to AMS could have a material adverse effect on sales of AMS’s products.

We are dependent upon third parties to provide us with various estimates as a basis for our financial reporting. While we undertake certain procedures to review the reasonableness of this information, we cannot obtain absolute assurance over the accounting methods and controls over the information provided to us by third parties. As a result we are at risk of them providing us with erroneous data which could have a material adverse impact on our business.

If our manufacturing facilities are unable to manufacture our products or the manufacturing process is interrupted due to failure to comply with regulations or for other reasons, it could have a material adverse impact on our business.

In November 2010, we acquired Qualitest Pharmaceuticals’ pharmaceutical manufacturing facilities located in Huntsville, Alabama and Charlotte, North Carolina. The Qualitest Pharmaceuticals facilities currently manufacture many of our generics products. In connection with the AMS acquisition, we acquired AMS’s manufacturing facilities in Minnesota and California, where many of AMS’s products are made. In 2012, we began manufacturing in our facility in Ireland.

If any of our manufacturing facilities fail to comply with regulatory requirements or encounter other manufacturing difficulties, it could adversely affect our ability to supply products. All facilities and manufacturing processes used for the manufacture of pharmaceutical products and medical devices must be operated in conformity with cGMP and, in the case of controlled substances, DEA regulations. Compliance with the FDA’s cGMP and DEA requirements applies to both drug products seeking regulatory approval and to approved drug products. In complying with cGMP requirements, pharmaceutical and medical device manufacturing facilities must continually expend significant time, money and effort in production, record-keeping and quality assurance and control (and design control for medical devices) so that their products meet applicable specifications and other requirements for product safety, efficacy and quality. Failure to comply with applicable legal requirements subjects our manufacturing facilities to possible legal or regulatory action, including shutdown, which may adversely affect their ability to supply us with product. Were we not able to manufacture products at our manufacturing facilities because of regulatory, business or any other reasons, the manufacture and marketing of these products would be interrupted. This could have a material adverse impact on our business, results of operation, financial condition, cash flows and competitive position.

The DEA limits the availability of the active ingredients used in many of our current products and products in development, as well as the production of these products, and, as a result, our procurement and production quotas may not be sufficient to meet commercial demand or complete clinical trials.

The DEA regulates chemical compounds as Schedule I, II, III, IV or V substances, with Schedule I substances considered to present the highest risk of substance abuse and Schedule V substances the lowest risk. The active ingredients in some of our current products and products in development, including oxycodone, oxymorphone, morphine, fentanyl, and hydrocodone, are listed by the DEA as Schedule II or III substances under the Controlled Substances Act of 1970. Consequently, their manufacture, shipment, storage, sale and use are subject to a high degree of regulation. For example, generally, all Schedule II drug prescriptions must be signed by a physician, physically presented to a pharmacist and may not be refilled without a new prescription.

Furthermore, the DEA limits the availability of the active ingredients used in many of our current products and products in development, as well as the production of these products and, and we, or our contract manufacturing organizations, must annually apply to the DEA for procurement and production quotas in order to obtain and produce these substances. As a result, our procurement and production quotas may not be sufficient to meet commercial demand or to complete clinical trials. Moreover, the DEA may adjust these quotas from time to time during the year, although the DEA has substantial discretion in whether or not to make such adjustments. Any delay or refusal by the DEA in establishing our quotas, or modification of our quotas, for controlled substances could delay or result in the stoppage of our clinical trials or product launches, or could cause trade inventory disruptions for those products that have already been launched, which could have a material adverse effect on our business, financial position, results of operations and cash flows.

We may not be able to maintain our current insurance policies covering our business, assets, directors and officers and product liability claims and we may not be able to obtain new policies in the future.

Property, product liability, directors’ and officers’ and general liability insurance represent significant costs to us. Since the events of September 11, 2001, and due to an increased focus on corporate governance in the U.S., and product liability lawsuits related to pharmaceuticals and medical devices, liability and other types of insurance have, in some instances, become more difficult and costly to obtain. As we continue to expand our portfolio of available products, we may experience an increase in the number of product liability claims against us. Moreover, we may be subject to claims that are not covered by insurance. In addition, products for which we currently have coverage may be excluded from coverage in the future. Certain claims may be subject to our self-insured retention, exceed our policy limits or relate to damages that are not covered by our policy. In addition, product liability coverage for certain pharmaceutical entities is becoming more expensive and increasingly difficult to obtain and, as a result, we may not be able to obtain the type and amount of coverage we desire or to maintain our current coverage. Unanticipated additional insurance costs could have a material adverse effect on our results of operations and cash flows. There can be no assurance that we will be able to maintain our existing insurance policies or obtain new policies in meaningful amounts or at a reasonable cost. Any failure to obtain or maintain any necessary insurance coverage could have a material adverse effect on our business, financial condition, results of operations and cash flows.

If we are unable to retain our key personnel, and continue to attract additional professional staff, we may be unable to maintain or expand our business.

Because of the specialized scientific nature of our business, our ability to develop products and to compete with our current and future competitors will remain highly dependent, in large part, upon our ability to attract and retain qualified scientific, technical and commercial personnel. The loss of key scientific, technical and commercial personnel or the failure to recruit additional key scientific, technical and commercial personnel could have a material adverse effect on our business. While we have consulting agreements with certain key individuals and institutions and have employment agreements with our key executives, we cannot assure you that we will succeed in retaining personnel or their services under existing agreements. There is intense competition for qualified personnel in the areas of our activities, and we cannot assure you that we will be able to continue to attract and retain the qualified personnel necessary for the development of our business.

Our revenues and operating results may fluctuate in future periods and we may fail to meet expectations, which may cause the market value of the debt and equity securities issued by us to decline.

Our quarterly operating results are difficult to predict and may fluctuate significantly from period to period. Accordingly, one cannot predict our quarterly financial results based on our full-year financial guidance. We cannot predict with certainty the timing or level of sales of our products in the future. If our quarterly sales or operating results fall below the expectations of investors or securities analysts, the value of our securities could decline substantially. Our operating results may fluctuate due to various factors including those set forth above. As a result of these factors, we believe that period-to-period comparisons of our operating results are not a good indication of our future performance.

The trading prices of our securities may be volatile, and your investment in our securities could decline in value.

The market prices for securities of healthcare companies in general have been highly volatile and may continue to be highly volatile in the future. For example, in 2013 , our stock traded between $25.01 and $67.63 per share. The following factors, in addition to other risk factors described in this section, may cause the market value of our securities to fluctuate:

Our operations could be disrupted if our information systems fail or if we are unsuccessful in implementing necessary upgrades.

Our business depends on the efficient and uninterrupted operation of our computer and communications systems and networks, hardware and software systems and our other information technology. If our systems were to fail or we are unable to successfully expand the capacity of these systems, or we are unable to integrate new technologies into our existing systems, our operations and financial results could suffer.

The publication of negative results of studies or clinical trials on pharmaceutical industry products may adversely impact our sales revenue.

From time to time, studies or clinical trials on various aspects of pharmaceutical products are conducted by academics or others, including government agencies. The results of these studies or trials, when published, may have a dramatic effect on the market for the pharmaceutical product that is the subject of the study. The publication of negative results of studies – or clinical trials related to our products or the therapeutic areas in which our products compete – could adversely affect our sales, the prescription trends for our products and the reputation of our products. In the event of the publication of negative results of studies or clinical trials related to our products or the therapeutic areas in which our products compete, our business, financial condition, results of operations and cash flows could be materially adversely affected. In addition, on September 27, 2007, Congress enacted requirements for the reporting of clinical trial information by expanding the type of clinical trials for which a sponsor or investigator of a drug, medical device or biological product clinical trial must register and provide results to the National Institutes of Health (NIH) for inclusion in the publicly-available Clinical Trial Registry database of clinical trials. It remains unclear what impact the publication of clinical research data will have for our products.

The regulatory approval process outside the U.S. varies depending on foreign regulatory requirements, and failure to obtain regulatory approval in foreign jurisdictions would prevent the marketing of our products in those jurisdictions.

We have worldwide intellectual property rights to market many of our products and product candidates. We intend to seek approval to market certain of our products outside of the U.S. To market our products in the European Union and other foreign jurisdictions, we must obtain separate regulatory authorization and comply with numerous and varying regulatory requirements. Approval of a product by the comparable regulatory authorities of foreign countries must be obtained prior to manufacturing or marketing that product in those countries. The approval procedure varies among countries and can involve additional testing, and the time required to obtain approval may differ from that required to obtain FDA approval. The foreign regulatory approval process includes all of the risks associated with obtaining FDA approval set forth herein and approval by the FDA does not ensure approval by the regulatory authorities of any other country, nor does the approval by foreign regulatory authorities in one country ensure approval by regulatory authorities in other foreign countries or the FDA. If we fail to comply with these regulatory requirements or obtain and maintain required approvals, our target market will be reduced and our ability to generate revenue from abroad will be adversely affected.

Agreements between branded pharmaceutical companies and generic pharmaceutical companies are facing increased government scrutiny in both the U.S. and abroad.

We are involved in numerous patent litigations in which generic companies challenge the validity or enforceability of our products’ listed patents and/or the applicability of these patents to the generic applicant’s products. Likewise, our Qualitest segment is also involved in patent litigations in which we challenge the validity or enforceability of innovator companies’ listed patents and/or their applicability to our generic products. Therefore, settling patent litigations has been and is likely to continue to be part of our business. Parties to such settlement agreements in the U.S., including us, are required by law to file them with the FTC and the Antitrust Division of the DOJ for review. The FTC has publicly stated that, in its view, some of these settlement agreements violate the antitrust laws and has brought actions against some brand and generic companies that have entered into such agreements. Accordingly, we may receive formal or informal requests from the FTC for information about a particular settlement agreement, and there is a risk that the FTC may commence an action against us alleging violation of the antitrust laws. Any adverse outcome of these actions or investigations could have a significant adverse effect on our business, financial condition and results of operations. In addition, some members of Congress have proposed legislation that would limit the types of settlement agreements generic manufacturers can enter into with brand companies. In 2013, the Supreme Court, in FTC v. Actavis , determined that reverse payment patent settlements between generic and brand companies should be evaluated under the rule of reason, and provided limited guidance beyond the selection of this standard. Because the Court did not articulate a precise rule of lawfulness for such settlements, there may be extensive litigation over what constitutes a reasonable and lawful patent settlement between a brand and generic company. Recently, Endo was notified of multiple lawsuits purporting to be class actions brought by direct and indirect payors alleging that its Settlement Agreement with Watson (now Actavis) regarding the Lidoderm ® patent litigation was unlawful and in violation of federal antitrust laws, as well as various state laws. Additional similar suits may be filed in the future. The impact of such pending and future litigation, legislative proposals and potential future Supreme Court review is uncertain and could adversely affect Endo’s business, financial condition and results of operations. On February 25, 2014, the Company's subsidiary, EPI received a Civil Investigative Demand (CID) from the United States Federal Trade Commission. The CID requests documents and information concerning EPI's Settlement Agreements with Actavis and Impax relating to the Opana ^® ER patent litigation and its Settlement Agreement with Actavis relating to the Lidoderm ^®

patent litigation, as well as information concerning the marketing and sales of Opana ^® ER and Lidoderm ^® . EPI intends to fully cooperate with the FTC's investigation. At this time, EPI cannot predict or determine the outcome of this investigation or reasonably estimate the amount or range of amounts of fines and penalties, if any, that might result from an adverse outcome.

While healthcare reform may increase the number of patients who have insurance coverage for our products, its cost containment measures may adversely affect reimbursement for our products.

In March 2010, President Obama signed into law healthcare reform legislation. This legislation has both current and longer-term impacts on us, as discussed below.

The provisions of this healthcare reform legislation have already become or will become effective on various dates over the next several years. The principal provisions affecting us provide for the following:

A number of the provisions of this healthcare reform legislation may adversely affect reimbursement for our products. Additionally, the best price requirements with respect to Medicaid rebates have traditionally been a significant consideration with respect to the level of rebates in our Medicare and commercial contracting. Healthcare reform legislation’s effects on rebate amounts could adversely impact our future results of operations.

Over the next few years, regulations and guidance implementing this healthcare reform legislation as well as additional healthcare reform proposals may have a financial impact on the Company. In addition, healthcare reform legislation requires that, except in certain circumstances, individuals must obtain health insurance beginning in 2014, and it also provides for an expansion of Medicaid coverage in 2014. It is expected that, as a result of these provisions, there will be a substantial increase in the number of Americans with health insurance beginning in 2014, a significant portion of whom will be eligible for Medicaid. We anticipate that this will increase demand for pharmaceutical products and medical devices overall. However, in view of the many uncertainties, including but not limited to pending litigation challenging the new law and changes in the partisan composition of Congress, we are

unable at this time to determine whether and to what extent sales of our prescription pharmaceutical products or medical devices in the U.S. will be impacted.

Our Consolidated Financial Statements may be impacted in future periods based on the accuracy of our valuations of each of our acquired businesses.

Accounting for our acquisitions involves complex and subjective valuations of the assets, liabilities, and noncontrolling interests of the acquired entities, which will be recorded in the Company’s Consolidated Financial Statements pursuant to the general accounting rules applicable for business combinations. Differences between the inputs and assumptions used in the valuations and actual results could have a material effect on our Consolidated Financial Statements in future periods.

Our sales may be adversely affected if physicians do not recommend or use AMS’s products.

We rely upon physicians to recommend or use AMS’s products. Many of AMS’s products are based on new treatment methods. Acceptance of AMS’s products is dependent on educating the medical community as to the distinctive characteristics, perceived benefits, clinical efficacy, potential risks and cost-effectiveness of our products, including these of AMS, compared to competitive products, and on training physicians in the proper application of our products. We believe AMS’s products address major market opportunities and significant patient needs, but if we are unsuccessful in educating physicians about the risks and benefits of AMS’s products, or such products are identified in regulatory agency public health communications, our sales and earnings could be adversely affected.

We are subject to health information privacy and security standards that include penalties for noncompliance.

The administrative simplification section of HIPAA imposes stringent requirements on “covered entities” (healthcare providers, health plans and healthcare clearinghouses) to safeguard the privacy and security of individually-identifiable health information. Certain of our operations are subject to these requirements, and we believe that we are in compliance with the applicable standards. Penalties for noncompliance with these rules include both criminal and civil penalties. In addition, the Health Information Technology for Economic and Clinical Health Act (included in the American Recovery and Reinvestment Act of 2009) and it’s implementing regulations, collectively HITECH, expanded federal health information privacy and security protections. Among other things, HITECH makes certain of HIPAA’s privacy and security standards directly applicable to “business associates”– independent contractors or agents of covered entities that receive or obtain protected health information in connection with providing a service on behalf of a covered entity. HITECH also set forth new notification requirements for certain security breaches, increased the civil penalties that may be imposed against covered entities, business associates and possibly other persons for HIPAA violations, and gave state attorneys general new authority to file civil actions for damages or injunctions in federal courts to enforce HIPAA and seek attorney’s fees and costs associated with pursuing federal civil actions.

New and proposed federal and state laws and regulatory initiatives relating to various initiatives in healthcare reform (such as improving privacy and the security of patient information and combating healthcare fraud) could require us to expend substantial sums to appropriately respond to and comply with this broad variety of legislation (such as acquiring and implementing new information systems for privacy and security protection), which could negatively impact our business, results of operations, financial condition and cash flows.

Recent legislative and regulatory initiatives at the state and federal levels address concerns about the privacy and security of health information. HITECH expands the health information privacy and security protections under HIPAA and imposes new obligations to notify individuals and the Department of HHS Office for Civil Rights, or OCR, of breaches of certain unsecured health information. We do not yet know the total financial or other impact of these laws and regulations on us. Continuing compliance with these laws and regulations may require us to spend substantial sums, including, but not limited to, purchasing new information technology, which could negatively impact financial results. Additionally, if we fail to comply with the HIPAA privacy, security and breach notification standards, we could suffer civil penalties of up to $1,500,000 per calendar year for violations of an identical standard and criminal penalties of up to $250,000 and 10 years in prison for offenses committed with the intent to sell, transfer, or use individually identifiable health information for commercial advantage, personal gain or malicious harm. In addition, healthcare providers will continue to remain subject to any state laws that are more restrictive than the federal privacy regulations. These privacy laws vary by state and could impose additional penalties.

The provisions of HIPAA criminalize situations that previously were handled exclusively civilly through repayments of overpayments, offsets and fines by creating new federal healthcare fraud crimes. Further, as with the federal laws, general state criminal laws may be used to prosecute healthcare fraud and abuse. We believe that our business arrangements and practices comply with existing healthcare fraud and abuse laws. However, a violation could subject us to penalties, fines and/or possible exclusion from Medicare or Medicaid. Such sanctions could significantly reduce our financial results.

Future healthcare legislation and regulation or other changes in the administration of or interpretation of existing legislation or regulations regarding governmental healthcare programs could have an adverse effect on our business and the results of our operations.

AMS could be adversely affected by special risks and requirements related to its medical products manufacturing business.

AMS is subject to various risks and requirements associated with being medical equipment manufacturer, which could have adverse effects. These include the following:

International operations of our AMS segment could expose us to various risks, including risks related to fluctuations in foreign currency exchange rates.

Our AMS segment derives a significant portion of its net sales from operations in international markets. In 2013 and 2012 , 36.0% and 34.6% , respectively, of our AMS segment’s total revenues were to customers outside the U.S. Some of these sales were to governmental entities and other organizations with extended payment terms. A number of factors, including differing economic conditions, changes in political climate, differing tax structures, changes in diplomatic and trade relationships, and political or economic instability in the countries where AMS does business, could affect payment terms and AMS’s ability to collect foreign receivables. We have little influence over these factors and changes could have a material adverse impact on our business. In addition, foreign sales are influenced by fluctuations in currency exchange rates, primarily the euro, British pound, Canadian dollar, Australian dollar, and Swedish krona. Increases in the value of the foreign currencies relative to the U.S. dollar would positively impact our earnings and decreases in the value of the foreign currencies relative to the U.S. dollar would negatively impact our earnings.

The risks of selling and shipping products and of purchasing components and products internationally may adversely impact our revenues, results of operations and financial condition.

The sale and shipping of AMS’s products and services across international borders is subject to extensive U.S. and foreign governmental trade regulations, such as various anti-bribery laws, including the U.S. Foreign Corrupt Practices Act, export control laws, customs and import laws, and anti-boycott laws. Our failure to comply with applicable laws and regulations could result in significant criminal, civil and administrative penalties, including, but not limited to, imprisonment of individuals, fines, denial of export privileges, seizure of shipments, restrictions on certain business activities, and exclusion or debarment from government contracting. Also, the failure to comply with applicable legal and regulatory obligations could result in the disruption of our shipping and sales activities.

In addition, some countries in which AMS sells products are, to some degree, subject to political, economic and/or social instability. AMS’s international sales operations expose us and our representatives, agents and distributors to risks inherent in operating in foreign jurisdictions. These risks include:

We cannot provide assurance that one or more of these factors will not harm our business and we are experiencing fluidity in regulatory and pricing trends as a result of healthcare reform. Any material decrease in AMS’s international sales would adversely impact AMS’s results of operations and financial condition.

Worldwide economic conditions may adversely affect our business, operating results and financial condition.

We believe that worldwide economic conditions have resulted and may continue to result in reductions in the procedures using AMS’s products. Although a majority of AMS’s products are subject to reimbursement from third-party government and non-governmental entities, some procedures that use AMS’s products can be deferred by patients. In current economic conditions, patients may not have employer-provided healthcare or be as willing to take time off from work or spend their money on deductibles and co-payments often required in connection with the procedures that use AMS’s products. Beyond patient demand, hospitals and clinics may be less likely to purchase capital equipment in the current economic conditions and credit environment. Economic conditions could also affect the financial strength of AMS’s vendors and their ability to fulfill their commitments to AMS, and the financial strength of AMS’s customers and its ability to collect accounts receivable. While AMS believes that worldwide economic conditions may have contributed to a softening in AMS’s recent revenue growth rates, the specific impact is difficult to measure. We cannot predict how these economic conditions will impact future sales, cost of goods sold, or bad debt expense.

We have indebtedness which could adversely affect our financial position and prevent us from fulfilling our obligations under such indebtedness.

We currently have a substantial amount of indebtedness. As of December 31, 2013 , we have total debt of approximately $3.8 billion in aggregate principal amount. This debt primarily consists of $2.0 billion of senior notes, $1.4 billion secured term loan indebtedness and $379.5 million of convertible senior subordinated notes. As of December 31, 2013 , we have availability of $500.0 million under our revolving credit facility, not including an up to $500.0 million uncommitted expansion option available under our 2011 Credit Facility, subject to satisfaction of certain conditions. We may also incur significant additional indebtedness in the future. Our substantial indebtedness may:

Despite our current level of indebtedness, we may still be able to incur substantially more indebtedness. This could exacerbate the risks associated with our substantial indebtedness.

We and our subsidiaries may be able to incur substantial additional indebtedness in the future, including potential additional secured indebtedness pursuant to the uncommitted expansion option under our 2011 Credit Facility, subject to satisfaction of certain conditions, and subsidiary indebtedness to which the notes would be effectively subordinated. The terms of the indentures will limit, but not prohibit, us or our subsidiaries from incurring additional indebtedness, but these limits are subject to significant exceptions and do not limit liabilities that do not constitute debt. If we incur any additional indebtedness that ranks equally with the notes and the guarantees, the holders of that indebtedness will be entitled to share ratably with the holders of the notes and the guarantees in any proceeds distributed in connection with any insolvency, liquidation, reorganization, dissolution or other winding-up of us. This may have the effect of reducing the amount of proceeds paid to you. If new indebtedness is added to our current debt levels, the related risks that we and our subsidiaries now face could intensify.

Covenants in our debt agreements restrict our business in many ways.

The indentures governing the notes and the agreements governing the 2011 Credit Facility and other outstanding indebtedness subject us to various covenants that limit our ability and/or our restricted subsidiaries’ ability to, among other things:

A breach of any of these covenants could result in a default under our indebtedness, including the 2011 Credit Facility and/or the notes.

We are a holding company with no direct operations and will depend on the business of our subsidiaries to satisfy our obligations under our indebtedness.

We are a holding company with no direct operations. Our principal assets are the equity interests we hold in our operating subsidiaries. Our subsidiaries will conduct substantially all of the operations necessary to fund payments on our indebtedness. Our subsidiaries are legally distinct from us and have no obligation to make funds available to us. Our ability to make payments on our indebtedness will depend on our subsidiaries’ cash flow and their payment of funds to us. Our subsidiaries’ ability to make payments to us will depend on:

We cannot assure you that the operating results of our subsidiaries at any given time will be sufficient to make distributions or other payments to us or that any distributions and/or payments will be adequate to pay principal and interest, and any other payments our indebtedness when due.

Our variable rate indebtedness exposes us to interest rate risk, which could cause our debt costs to increase significantly.

A substantial portion of our borrowings under the 2011 Credit Facility are at variable rates of interest, exposing us to interest rate risks. We are exposed to the risk of rising interest rates to the extent that we fund our operations with short-term or variable-rate borrowings. As of December 31, 2013 , our total aggregate principal of debt consists of approximately $1.4 billion of floating-rate debt. Based on this amount, a 1% rise in interest rates would result in approximately $14.0 million in incremental annual interest expense. If London Inter-Bank Offer rates (LIBOR) increase in the future, then our floating-rate debt could have a material effect on our interest expense.

We may be unable to repay or repurchase amounts outstanding on our indebtedness at maturity.

At maturity, the entire outstanding principal amount of our indebtedness, together with accrued and unpaid interest, will become due and payable. We may not have the funds to fulfill these obligations or the ability to refinance these obligations. If the maturity date occurs at a time when other arrangements prohibit us from repaying our indebtedness, we would try to obtain waivers of such prohibitions from the lenders and holders under those arrangements, or we could attempt to refinance the borrowings that contain the restrictions. If we could not obtain the waivers or refinance these borrowings, we would be unable to repay our indebtedness.

To service our indebtedness, we will require a significant amount of cash. If we fail to generate sufficient cash flow from future operations, we may have to refinance all or a portion of our indebtedness or seek to obtain additional financing.

We expect to obtain the funds to pay our expenses and the amounts due under our indebtedness primarily from operations. Our ability to meet our expenses and make these payments thus depends on our future performance, which will be affected by financial, business, economic, competitive, legislative, regulatory and other factors, many of which are beyond our control. Our business may not generate sufficient cash flow from operations in the future and our currently anticipated growth in revenue and cash flow may not be realized, either or both of which could result in our being unable to pay amounts due under our outstanding indebtedness, or to fund other liquidity needs, such as future capital expenditures. If we do not have sufficient cash flow from operations, we may be required to refinance all or part of our then existing indebtedness, sell assets, reduce or delay capital expenditures or seek to raise additional capital, any of which could have a material adverse effect on our operations. There can be no assurance that we will be able to accomplish any of these alternatives on terms acceptable to us, or at all. Our ability to restructure or refinance our indebtedness, including the notes, will depend on the condition of the capital markets and our financial condition at such time. Any refinancing of our debt could be at higher interest rates and may require us to comply with more onerous covenants, which could further restrict our business operations. In addition, the terms of existing or future debt agreements, including the indentures governing the notes, may restrict us from adopting any of these alternatives. Any failure to make scheduled payments of interest or principal on our outstanding indebtedness would likely result in a reduction of our credit rating, which could negatively impact our ability to incur additional indebtedness on commercially reasonable terms or at all. The failure to generate sufficient cash flow or to achieve any of these alternatives could materially adversely affect the value of our notes, our business, financial condition and other results of operations, and our ability to pay the amounts due under the notes and our other indebtedness.

Our failure to comply with the agreements relating to our outstanding indebtedness, including as a result of events beyond our control, could result in an event of default under our outstanding indebtedness that could materially and adversely affect our results of operations and our financial condition.

If there were an event of default under any of the agreements relating to our outstanding indebtedness, the holders of the defaulted debt could cause all amounts outstanding with respect to that debt to be due and payable immediately and our lenders could terminate all commitments to extend further credit. The instruments governing our debt contain cross-default or cross-acceleration provisions that may cause all of the debt issued under such instruments to become immediately due and payable as a result of a default

under an unrelated debt instrument. An event of default or an acceleration under one debt agreement could cause a cross-default or cross-acceleration of other debt agreements. Upon acceleration of certain of our other indebtedness, holders of the notes could declare all amounts outstanding under the notes immediately due and payable. We cannot assure you that our assets or cash flow would be sufficient to fully repay borrowings under our outstanding debt instruments if the obligations thereunder were accelerated upon an event of default. Further, if we are unable to repay, refinance or restructure our secured debt, the holders of such debt could proceed against the collateral securing that indebtedness. We have pledged substantially all of our assets as collateral under the 2011 Credit Facility. If the lenders under the 2011 Credit Facility accelerate the repayment of borrowings, we may not have sufficient assets to repay the obligations outstanding under the 2011 Credit Facility and our other indebtedness, including the notes. Furthermore, our borrowings under the 2011 Credit Facility are expected to be at variable rates of interest and expose us to interest rate risk. If interest rates increase, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remains the same, and our net income would decrease. For a description of our indebtedness, see Note 13. Debt in the Consolidated Financial Statements, included in Part IV, Item 15. of this report "Exhibits, Financial Statement Schedules" .

Risks Related to the Transactions with Paladin

The number of Endo International plc (Endo International) ordinary shares that Endo shareholders will receive as consideration for the merger will be based on a fixed exchange ratio, which will not be adjusted to reflect changes in the market value of Paladin common shares or Endo common stock prior to consummation of the transactions.

As consideration for the merger, each Endo common share then issued and outstanding will be canceled and automatically converted into the right to receive one ordinary share of Endo International, pursuant to a fixed exchange ratio. This one-for-one fixed exchange ratio will not adjust upwards to compensate for changes in the price of Endo’s common stock or Paladin’s common shares prior to the effective time of the transactions. Share price changes may result from a variety of factors, including changes in the business, operations or prospects of Endo or Paladin, market assessments of the likelihood that the transactions will be completed, the timing of the transaction, regulatory considerations, general market and economic conditions and other factors. Shareholders are urged to obtain current market quotations for Endo common stock and Paladin common shares.

The cash consideration to be paid to Paladin shareholders may be increased depending on a decline in the market value of Endo common stock.

Although the share consideration to be received by Paladin shareholders will also not be adjusted to reflect changes in the market value of the Endo common stock or Paladin common shares, the cash consideration to be received by Paladin shareholders will be increased if Endo’s 10-day volume weighted average price declines during the ten trading day period ending on the third trading day prior to the Paladin special meeting by more than 7% relative to a reference price of US$44.4642 per share. Full cash compensation (determined on a U.S. dollar basis converted into and paid in Canadian dollars) will be provided by Endo to Paladin shareholders for any share price declines of more than 7% but less than 20% from the reference price. If Endo’s share price declines between 20% and 24% from the reference price during the agreed reference period, Endo will provide cash compensation (determined on a U.S. dollar basis converted into and paid in Canadian dollars) for one half of the incremental decline to Paladin shareholders. Declines in Endo’s share price beyond 24% from the reference price will not give rise to further cash compensation to Paladin shareholders. The maximum amount potentially payable to Paladin shareholders under this price protection mechanism is US$233.0 million.  

Failure to consummate the transactions could negatively impact the stock price and the future business and financial results of Endo.

If the transactions are not consummated, the ongoing business of Endo may be materially and adversely affected and, without realizing any of the benefits of having consummated the transactions, Endo will be subject to a number of risks, including the following:

If the transactions are not consummated, these risks may materialize and may materially and adversely affect Endo’s business, financial results and stock price.

Endo’s and Paladin’s respective business relationships, including customer relationships, may be subject to disruption due to uncertainty associated with the transactions.

Parties with which Endo and Paladin currently do business or may do business in the future, including customers and suppliers, may experience uncertainty associated with the transactions, including with respect to current or future business relationships with Endo, Paladin or Endo International. As a result, Endo’s and Paladin’s business relationships may be subject to disruptions if customers, suppliers and others attempt to negotiate changes in existing business relationships or consider entering into business relationships with parties other than Endo or Paladin. These disruptions could have a material and adverse effect on the businesses, financial condition, results of operations or prospects of Endo International following the closing. The effect of such disruptions could be exacerbated by a delay in the consummation of the transactions or termination of the arrangement agreement.

Loss of key personnel could impair the integration of the two businesses, lead to loss of customers and a decline in revenues, adversely affect the progress of pipeline products or otherwise adversely affect the operations of Endo, Paladin and Endo International.

The success of Endo International after the completion of the merger and the arrangement will depend, in part, upon its ability to retain key employees, especially during the integration phase of the two businesses. Current and prospective employees of Endo and Paladin might experience uncertainty about their future roles with Endo International following completion of the merger, which might materially and adversely affect Endo’s and Endo International’s ability to retain key managers and other employees. In addition, competition for qualified personnel in the biotechnology industry is very intense. If Endo or Paladin lose key personnel or Endo International is unable to attract, retain and motivate qualified individuals or the associated costs to Endo International increase significantly, Endo’s business and Endo International’s business could be materially and adversely affected.

Obtaining required approvals necessary to satisfy the conditions to the completion of the transactions may delay or prevent completion of the transactions, result in additional expenditures of money and resources and/or reduce the anticipated benefits of the transactions.

The transactions are subject to closing conditions. These closing conditions include, among others, the receipt of required approvals of Endo and Paladin shareholders, approval of the arrangement by the Québec court, the effectiveness of the registration statement, the receipt by Endo of a tax opinion rendered by Skadden, the expiration or termination of the waiting period under the HSR Act and receipt of Competition Act and Investment Canada Act approvals in Canada and receipt of Competition Act approval in South Africa.

The governmental agencies from which the parties will seek certain of these approvals have broad discretion in administering the governing regulations. As a condition to their approval, agencies may impose requirements, limitations or costs or require divestitures or place restrictions on the conduct of Endo International’s business after the closing. These requirements, limitations, costs, divestitures or restrictions could jeopardize or delay the consummation of the transactions or may reduce the anticipated benefits of the transactions. Further, no assurance can be given that the required shareholder approval will be obtained or that the required closing conditions will be satisfied, and, if all required consents and approvals are obtained and the closing conditions are satisfied, no assurance can be given as to the terms, conditions and timing of the approvals. If Endo and Paladin agree to any material requirements, limitations, costs or restrictions in order to obtain any approvals required to consummate the arrangement and the merger, these requirements, limitations, costs or restrictions could materially and adversely affect the anticipated benefits of the transactions. This could result in a failure to consummate these transactions or have a material adverse effect on Endo International’s business and results of operations.

Endo may waive one or more of the conditions to the merger without resoliciting shareholder approval.

Endo may determine to waive, in whole or in part, one or more of the conditions to its obligations to complete the merger, to the extent permitted by applicable laws. Endo will evaluate the materiality of any such waiver and its effect on its shareholders in light of the facts and circumstances at the time to determine whether any amendment of the proxy statement/prospectus and resolicitation of proxies is required or warranted. In some cases, if Endo’s board of directors determines that such a waiver is warranted but that such waiver or its effect on its shareholders is not sufficiently material to warrant resolicitation of proxies, Endo has the discretion to complete the merger without seeking further shareholder approval. Any determination whether to waive any condition to the merger or as to resoliciting shareholder approval or amending the proxy statement/prospectus as a result of a waiver will be made by Endo at the time of such waiver based on the facts and circumstances as they exist at that time.

Certain of Endo’s executive officers and all of Endo’s directors have interests in the transactions in addition to those of shareholders.

In considering the recommendations of the Endo board of directors with respect to the arrangement agreement, you should be aware that certain of Endo’s executive officers and all of Endo’s directors have financial and other interests in the transactions in

addition to interests they might have as shareholders. In particular, it is expected that members of the Endo board of directors and executive officers will become directors and executive officers of Endo International.

As a result of the merger and arrangement, Endo International will incur additional direct and indirect costs.

Endo International will incur additional costs and expenses in connection with and as a result of the transactions. These costs and expenses include professional fees to comply with Irish corporate and tax laws, costs and expenses incurred in connection with holding a majority of the meetings of the Endo International board of directors and certain executive management meetings in Ireland, as well as any additional costs Endo International may incur going forward as a result of its new corporate structure. There can be no assurance that these costs will not exceed the costs historically borne by Endo and Paladin.

If goodwill or other intangible assets that Endo International records in connection with the merger become impaired, Endo International could have to take significant charges against earnings.

In connection with the accounting for the merger, it is expected that Endo International will record a significant amount of goodwill and other intangible assets. Under U.S. GAAP, Endo International must assess, at least annually and potentially more frequently, whether the value of goodwill and other indefinite-lived intangible assets has been impaired. Amortizing intangible assets will be assessed for impairment in the event of an impairment indicator. Any reduction or impairment of the value of goodwill or other intangible assets will result in a charge against earnings, which could materially adversely affect Endo International’s results of operations and shareholders’ equity in future periods.

Existing Endo shareholders will own a smaller share of Endo International following completion of the transactions.

Following completion of the transactions, Endo shareholders will own the same number of shares of Endo International that they owned in Endo immediately before the closing. Each Endo International ordinary share, however, will represent a smaller ownership percentage of a significantly larger company. Upon consummation of the merger and arrangement, the former shareholders of Endo are expected to own approximately 77.4% of the outstanding ordinary shares of Endo International on a fully-diluted basis, and the former shareholders of Paladin and holders of Paladin options are expected to own approximately 22.6% of the outstanding ordinary shares of Endo International on a fully-diluted basis.

Until the completion of the transactions or the termination of the arrangement agreement in accordance with its terms, Endo and/or Paladin are prohibited from entering into certain transactions that might otherwise be beneficial to Endo and/or Paladin or their respective shareholders.

During the period that the arrangement agreement is in effect, other than with the other party’s written consent, each of Paladin and Endo are subject to certain restrictions. For example, without Paladin’s written consent, Endo is prohibited from making any acquisition that would be reasonably likely to prevent the transactions from occurring. The foregoing prohibition could have the effect of delaying other strategic transactions and may, in some cases, make it impossible to pursue other strategic transactions that are available only for a limited time.

Endo has entered into voting agreements with certain Paladin shareholders who owned in the aggregate approximately 34% of the outstanding Paladin common shares as of the date of the arrangement agreement, and termination of the voting agreements could result in significantly decreased support for the arrangement.

The voting agreements may be terminated if the effective date has not occurred by May 5, 2014 (or such later date as agreed to by the parties to the arrangement agreement), if the arrangement agreement is amended by the parties resulting in a reduction in the purchase price payable per security or if the volume weighted average price per share of Endo shares is less than 76% of US$44.4642 during a reference valuation period, which will be the ten trading days ending on the third trading day prior to the date of the special meeting of Paladin shareholders (or if such volume weighted average price is not available, as determined by a calculation agent using a reasonable, good faith estimate of such price for such reference valuation period).

  Risks Related to the Business of Endo International

The global nature of Paladin’s business exposes Endo International to risks associated with adapting to emerging markets and taking advantage of growth opportunities.

The globalization of Paladin’s business, including in Mexico and Brazil, and the increased volume of operations and profits through Litha Health Care Group Limited (Litha), may expose Endo International to increased risks. Emerging markets have been identified as one of Paladin’s growth platforms and is a key element of Paladin’s overall strategy. Any difficulties in adapting to emerging markets and/or a material decline in the anticipated growth rate in any of these regions could impair Endo International’s ability to take advantage of these growth opportunities and affect Endo International’s business, results of operations or financial condition.

There is no assurance that Endo International’s efforts to expand sales in emerging markets or that Paladin’s significant investment in South Africa will succeed. The expansion of Endo International’s activities in emerging markets may further expose Endo International to more volatile economic conditions, political instability and competition from companies that are already well established in these markets and the inability of Endo International to adequately respond to the unique characteristics of these markets, particularly with respect to their regulatory frameworks, the difficulties in recruiting qualified personnel, potential exchange controls, weaker intellectual property protection, higher crime levels and corruption and fraud, could have a material adverse effect on the business of Endo International.

Endo International’s policies and procedures, which are designed to help Endo International, its employees and its agents comply with various laws and regulations regarding corrupt practices and anti-bribery, cannot guarantee protection against liability for actions taken by businesses in which Paladin has historically invested. Failure to comply with domestic or international laws could result in various adverse consequences, including possible delay in the approval or refusal to approve a product, recalls, seizures, withdrawal of an approved product from the market, or the imposition of criminal or civil sanctions, including substantial monetary penalties.

From a financial reporting perspective, differences in banking systems and business cultures could have an adverse effect on the efficiency of internal controls over financial reporting matters. Given the significant learning curve to fully understand the emerging markets’ business, operating environment and the quality of controls in place, Endo International may not be able to adequately assess the efficiency of internal controls over financial reporting or the effects of the laws and requirements of the local business jurisdictions.

Many jurisdictions require specific permits or business licenses, particularly if the business is considered foreign. These requirements including, in particular, requirements in South Africa related to the Broad-Based Black Economic Empowerment Strategy, may affect Endo International’s ability to carry out its business operations in the emerging markets.

The combination of the businesses currently conducted by Endo and Paladin will create numerous risks and uncertainties, which could adversely affect Endo International’s operating results or prevent Endo International from realizing the expected benefits of the merger and the arrangement.

Strategic transactions like the merger and the arrangement create numerous uncertainties and risks and require significant efforts and expenditures. Endo will transition from a standalone public Delaware corporation to being part of a combined company incorporated in Ireland. This combination will entail many changes, including the integration of Paladin and its personnel with those of Endo, and changes in systems. These transition activities are complex, and Endo International may encounter unexpected difficulties or incur unexpected costs, including:

If any of these factors impairs Endo International’s ability to integrate the operations of Endo with those of Paladin successfully or on a timely basis, Endo International may not be able to realize the anticipated synergies, business opportunities and growth prospects from combining the businesses. In addition, Endo International may be required to spend additional time or money on integration that otherwise would be spent on the development and expansion of its business.

In addition, the market price of Endo International ordinary shares may decline following the business combination if, among other things, the integration of Endo and Paladin is unsuccessful, takes longer than expected or fails to achieve financial benefits to the extent anticipated by financial analysts or investors, or the effect of the business combination on the financial results of the combined company is otherwise not consistent with the expectations of financial analysts or investors.

The IRS may not agree with the conclusion that Endo International should be treated as a foreign corporation for U.S. federal income tax purposes following the transaction.

Although Endo International will be incorporated in Ireland, the IRS may assert that it should be treated as a U.S. corporation (and, therefore, a U.S. tax resident) for U.S. federal income tax purposes pursuant to Section 7874 of the Code. A corporation is generally considered a tax resident in the jurisdiction of its organization or incorporation for U.S. federal income tax purposes. Because Endo International is an Irish incorporated entity, it would generally be classified as a foreign corporation (and, therefore, a non-U.S. tax resident) under these rules. Section 7874 provides an exception pursuant to which a foreign incorporated entity may, in certain circumstances, be treated as a U.S. corporation for U.S. federal income tax purposes.

Under Section 7874, Endo International would be treated as a foreign corporation for U.S. federal income tax purposes if the former shareholders of Endo own (within the meaning of Section 7874) less than 80% (by both vote and value) of Endo International stock by reason of holding shares in Endo (the “ownership test”). The Endo shareholders are expected to own less than 80% (by both vote and value) of the shares in Endo International after the merger by reason of their ownership of shares of Endo common stock. As a result, under current law, Endo International is expected to be treated as a foreign corporation for U.S. federal income tax purposes. However, there can be no assurance that there will not exist in the future a subsequent change in the facts or in law which might cause Endo International to be treated as a domestic corporation for U.S. federal income tax purposes, including with retrospective effect. Further, there can be no assurance that the IRS will agree with the position that the ownership test is satisfied. There is limited guidance regarding the application of Section 7874 of the Code, including with respect to the provisions regarding the application of the ownership test. Endo’s obligation to complete the transactions is conditional upon its receipt of the Section 7874 opinion from Skadden, dated as of the closing date and subject to certain qualifications and limitations set forth therein, to the effect that Section 7874 of the Code and the regulations promulgated thereunder should not apply in such a manner so as to cause Endo International to be treated as a U.S. corporation for U.S. federal income tax purposes from and after the closing date. However, an opinion of tax counsel is not binding on the IRS or a court. Therefore, there can be no assurance that the IRS will not take a position contrary to Skadden’s Section 7874 opinion or that a court will not agree with the IRS in the event of litigation.

Section 7874 of the Code likely will limit Endo’s and its U.S. affiliates’ ability to utilize certain U.S. tax attributes to offset certain U.S. taxable income, if any, generated by the transactions or certain specified transactions for a period of time following the transaction.

Following the acquisition of a U.S. corporation by a foreign corporation, Section 7874 of the Code may limit the ability of the acquired U.S. corporation and its U.S. affiliates to utilize certain U.S. tax attributes such as net operating losses to offset U.S. taxable income resulting from certain transactions. Based on the limited guidance available, Endo currently expects that following the transaction, this limitation will apply and as a result, Endo currently does not expect that it or its U.S. affiliates will be able to utilize certain U.S. tax attributes to offset U.S. taxable income, if any, resulting from certain specified taxable transactions.

Future changes to U.S. and non-U.S. tax laws could materially adversely affect Endo International.

Under current law, Endo International is expected to be treated as a foreign corporation for U.S. federal income tax purposes. However, changes to the rules in Section 7874 of the Code or regulations promulgated thereunder or other guidance issued by the Treasury or the IRS, could adversely affect Endo International’s status as a foreign corporation for U.S. federal income tax purposes, and any such changes could have prospective or retroactive application to Endo International, Endo, their respective shareholders and affiliates, and/or the transaction. In addition, recent legislative proposals would expand the scope of U.S. corporate tax residence, and such legislation, if enacted, could have a material and adverse effect on Endo International.

In addition, the U.S. Congress, the Organization for Economic Co-operation and Development, and other Government agencies in jurisdictions where Endo International and its affiliates do business have had an extended focus on issues related to the taxation of multinational corporations and there are several current legislative proposals that, if enacted, would substantially change the U.S. federal income tax system as it relates to the taxation of multinational corporations. One example is in the area of “base erosion and profit shifting,” where payments are made between affiliates from a jurisdiction with high tax rates to a jurisdiction with lower tax rates. As a result, the tax laws in the U.S. and other countries in which Endo International and its affiliates do business could change on a prospective or retroactive basis, and any such changes could materially and adversely affect Endo International.

The tax treatment of the merger to Endo shareholders is uncertain and cannot be known until after the transaction is completed.

For U.S. federal income tax purposes, the merger is intended to qualify as a non-taxable “reorganization” in which (i) Merger Sub will merge with and into Endo with Endo as the surviving corporation in the merger, and (ii) Endo shareholders will exchange their Endo common stock for Endo International ordinary shares received from both Endo International and Endo U.S. Inc. in the Endo share exchange. Under current U.S. federal income tax law, Endo shareholders generally are expected to not recognize any gain or loss on the Endo share exchange. Such non-recognition treatment is not certain, however, and there is risk that U.S. holders of Endo common stock will be required to recognize gain (but not loss) on the Endo share exchange because non-recognition treatment depends on the application of new and complex provisions of U.S. federal income tax law as well as certain facts that are subject to change and that cannot be known prior to the end of the year in which the merger is completed, including the aggregate gain of U.S. shareholders in their Endo common stock as of the closing date and the earnings and profits of Endo U.S. Inc. for the taxable year that includes the closing date.

Endo International is expected to be subject to U.S. federal withholding tax as a result of Endo U.S. Inc.’s subscription for Endo International ordinary shares in exchange for its promissory note.

If the merger qualifies as a reorganization under Section 368(a) of the Code and Section 367(a) of the Code does not apply, Endo International should be treated for U.S. tax purposes as receiving a distribution from Endo U.S. Inc. immediately prior to the merger. The deemed distribution for U.S. tax purposes will be treated as a taxable dividend to the extent of Endo U.S. Inc.’s current

and accumulated earnings and profits for the year of the deemed distribution and such dividend will be subject to U.S. withholding tax (at a rate of 5%) in accordance with the Convention between Ireland and the United States of America with Respect to Taxes on Income and Capital Gains, signed July 28, 1997, as amended, (Ireland-U.S. Tax Treaty). The amount of Endo U.S. Inc.’s current and accumulated earnings and profits for the year of the deemed distribution is uncertain, but could be substantial.

Notwithstanding the foregoing, if it is determined that Section 367(a) of the Code does apply, the deemed distribution and U.S. withholding tax rules would not apply.

Paladin is currently not subject to the compliance obligations of the Sarbanes-Oxley Act of 2002 and Endo International may not be able to timely and effectively implement controls and procedures over Paladin’s operations as required under the Sarbanes-Oxley Act of 2002.

Paladin is currently not subject to the information and reporting requirements of the Exchange Act and other federal securities laws, and the compliance obligations of the Sarbanes-Oxley Act of 2002. Subsequent to the completion of the transactions, Endo International will need to timely and effectively implement the internal controls necessary to satisfy the requirements of Section 404 of the Sarbanes-Oxley Act of 2002, which requires annual management assessments of the effectiveness of internal controls over financial reporting and a report by our independent registered public accounting firm addressing these assessments. Endo International intends to take appropriate measures to establish or implement an internal control environment at Paladin aimed at successfully adopting the requirements of Section 404 of the Sarbanes-Oxley Act of 2002. However, it is possible that Endo International may experience delays in implementing or be unable to implement the required internal financial reporting controls and procedures, which could result in enforcement actions, the assessment of penalties and civil suits, failure to meet reporting obligations and other material and adverse events that could have a negative effect on the market price for Endo International ordinary shares.

Risks Related to the Financial Condition of Endo International

Growing the business of Endo International will require the commitment of substantial resources, which could result in future losses or otherwise limit the opportunities of Endo International.

Growing the Endo International business over the longer-term will require us to commit substantial resources towards in-licensing and/or acquiring new products and product candidates, or towards costly and time-consuming product development and clinical trials of Endo International product candidates. It will also require continued investment in the commercial operations of Endo International. Endo International’s future capital requirements will depend on many factors, including many of those discussed above, such as:

One of Endo International’s goals will be to expand the business through the licensing, acquisition and/or development of additional products and product candidates. There can be no assurance that Endo International’s funds will be sufficient to fund these activities if opportunities arise, and Endo International may be unable to expand the business if it does not have sufficient capital or cannot borrow or raise additional capital on attractive terms.

Endo International may not be able to successfully maintain its low tax rates, which could adversely affect its business and financial condition, results of operations and growth prospects.

Endo International will be incorporated in Ireland and will maintain subsidiaries in the United States, Canada and South Africa. Taxing authorities, such as the IRS, actively audit and otherwise challenge these types of arrangements, and have done so in the pharmaceutical industry. The IRS may challenge the Endo International structure and transfer pricing arrangements through an audit or lawsuit. Responding to or defending such a challenge could be expensive and consume time and other resources, and divert management’s time and focus from operating the Endo International business. Endo International cannot predict whether taxing authorities will conduct an audit or file a lawsuit challenging this structure, the cost involved in responding to any such audit or lawsuit, or the outcome. If Endo International is unsuccessful, it may be required to pay taxes for prior periods, interest, fines or penalties, and may be

obligated to pay increased taxes in the future, any of which could require Endo International to reduce its operating expenses, decrease efforts in support of its products or seek to raise additional funds, all of which could have a material adverse effect on the Endo International business, financial condition, results of operations and growth prospects.

Risks Related to the Endo International Ordinary Shares

The market price of Endo International ordinary shares may be volatile, and the value of your investment could materially decline.

Investors who hold Endo International ordinary shares may not be able to sell their shares at or above the price at which they purchased the Endo common stock. The prices of Endo and Paladin common shares have fluctuated materially from time to time, and Endo International cannot predict the price of its ordinary shares. The risk factors described above could cause the price of Endo International ordinary shares to fluctuate materially. In addition, the stock market in general, including the market for specialty pharmaceutical companies, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. These broad market and industry factors may materially harm the market price of Endo International ordinary shares, regardless of Endo International’s operating performance. In addition, the Endo International stock price may be dependent upon the valuations and recommendations of the analysts who cover the Endo International business, and if its results do not meet the analysts’ forecasts and expectations, Endo International’s stock price could decline as a result of analysts lowering their valuations and recommendations or otherwise. In the past, following periods of volatility in the market, securities class-action litigation has often been instituted against companies. Such litigation, if instituted against Endo International, could result in substantial costs and diversion of management’s attention and resources, which could materially and adversely affect Endo International’s business, financial condition, results of operations and growth prospects.

Future sales of Endo International ordinary shares in the public market could cause volatility in the price of Endo International ordinary shares or cause the share price to fall.

Sales of a substantial number of Endo International ordinary shares in the public market, or the perception that these sales might occur, could depress the market price of Endo International ordinary shares, and could impair Endo International’s ability to raise capital through the sale of additional equity securities.

 

The Endo International ordinary shares to be received by Endo shareholders in connection with the merger will have different rights from the Endo common stock.

Upon consummation of the merger, Endo shareholders will become Endo International shareholders and their rights as shareholders will be governed by Endo International’s memorandum and articles of association and Irish law. The rights associated with Endo common stock are different from the rights associated with Endo International ordinary shares.

Endo International will not have sufficient distributable reserves to pay dividends or repurchase or redeem shares following the merger and the arrangement even if considered appropriate by the Endo International board of directors unless it is permitted by the Irish High Court to create distributable reserves. This is because, under Irish law, dividends may only be paid, and share purchases and redemptions must generally be funded out of, distributable reserves. Endo International can provide no assurance that Irish High Court approval of the creation of distributable reserves will be forthcoming.

If Endo International proposes to pay dividends or to repurchase or redeem shares in the future, it may be unable to do so under Irish law. Under Irish law, dividends may only be paid, and share repurchases and redemptions must generally be funded only out of, “distributable reserves.” Endo International will not have distributable reserves immediately following the closing even if the proposals to approve the creation of distributable reserves of Endo International, are approved by the Endo and Paladin shareholders. The creation of distributable reserves requires the approval of the Irish High Court which Endo International plans to seek following completion of the merger. Endo International is not aware of any reason why the Irish High Court would not approve the creation of distributable reserves; however, the issuance of the required order is a matter for the discretion of the Irish High Court and there is no guarantee that such approval will be forthcoming. Even if the Irish High Court does approve the creation of distributable reserves, it may take substantially longer than the parties anticipate.

Endo International does not expect to pay dividends for the foreseeable future, and you must rely on increases in the trading prices of the Endo International ordinary shares for returns on your investment.

Endo has never paid cash dividends on its common stock. Endo International does not expect to pay dividends in the immediate future. Endo International anticipates that it will retain all earnings, if any, to support its operations. Any future determination as to the payment of dividends will, subject to Irish legal requirements, be at the sole discretion of the Endo International board of directors and will depend on Endo International’s financial condition, results of operations, capital requirements and other factors the Endo International board of directors deems relevant. Holders of Endo International ordinary shares must rely on increases in the trading price of their shares for returns on their investment in the foreseeable future.

After the completion of the merger, attempted takeovers of Endo International will be subject to Irish Takeover Rules and subject to review by the Irish Takeover Panel.

Delaware’s anti-takeover statutes and laws regarding directors’ fiduciary duties give the boards of directors broad latitude to defend against unwanted takeover proposals. Following the closing, Endo International will become subject to Irish Takeover Rules,

under which the Endo International board of directors will not be permitted to take any action which might frustrate an offer for Endo International ordinary shares once it has received an approach which may lead to an offer or has reason to believe an offer is imminent. Further, it could be more difficult for Endo International to obtain shareholder approval for a merger or negotiated transaction after the closing of the business combination because the shareholder approval requirements for certain types of transactions differ, and in some cases are greater, under Irish law than under Delaware law.

Following the completion of the merger, a future transfer of Endo International ordinary shares may be subject to Irish stamp duty.

Transfers of Endo International ordinary shares could be subject to Irish stamp duty. However, transfers of Endo International ordinary shares effected by means of the transfer of book entry interests in DTC will not be subject to Irish stamp duty.

A submission is being made to the Irish Revenue Commissioners to seek confirmation in relation to the operation of stamp duty in respect of the transfer of book entry interests in Clearing and Depositary Services Inc. (CDS). If this confirmation is obtained, transfers of Endo International ordinary shares effected by means of the transfer of book entry interests in CDS will not be subject to Irish stamp duty. No assurance can be given that this confirmation will be forthcoming.

It is anticipated that the majority of Endo International ordinary shares will be traded through DTC and/or CDS by brokers who hold such shares on behalf of customers.

Endo International ordinary shares held directly (i.e a registered shareholder) could be subject to Irish stamp duty (currently at the rate of 1% of the higher of the price paid or the market value of the shares acquired) on any transfer. Payment of Irish stamp duty is generally a legal obligation of the transferee.

The imposition of stamp duty could adversely affect the price of your shares.

Dividends paid by Endo International may be subject to Irish dividend withholding tax.

In certain limited circumstances, dividend withholding tax (currently at a rate of 20%) may arise in respect of dividends paid on Endo International ordinary shares. A number of exemptions from dividend withholding tax exist, such that shareholders resident in European Union member states (other than Ireland) or other countries with which Ireland has signed a double tax treaty, which would include the U.S. or Canada, should generally be entitled to exemptions from dividend withholding tax provided that the appropriate documentation is in place. Please note the requirement to complete certain dividend withholding tax forms in order to qualify for many of the exemptions.

It is expected that shareholders resident in the U.S. who hold their shares through DTC may not be subject to dividend withholding tax if the addresses of the beneficial owners of such shares in the records of the brokers holding such shares are recorded as being in the U.S. (and such brokers have further transmitted the relevant information to a qualifying intermediary appointed by Endo International).

However, other shareholders may be subject to dividend withholding tax, which could adversely affect the price of shares.

After the transaction, dividends received by Irish residents and certain other shareholders may be subject to Irish income tax.

Shareholders entitled to an exemption from Irish dividend withholding tax on dividends received from Endo International will not be subject to Irish income tax in respect of those dividends, unless they have some connection with Ireland other than their shareholding in Endo International (for example, they are resident in Ireland). Shareholders who receive dividends subject to Irish dividend withholding tax will generally have no further liability to Irish income tax on those dividends.

Risks Related to the Tax Consequences of the Merger and Arrangement

Certain Irish Tax Consequences of the Merger and Arrangement

No Irish tax should arise for Endo shareholders or Paladin shareholders pursuant to the merger and the arrangement, unless such shareholders are resident or ordinarily resident in Ireland or hold such shares in connection with a trade carried on in Ireland through an Irish branch or agency.

It is recommended that each shareholder or shareholder consult his or her own tax advisor as to the tax consequences of holding shares in and receiving dividends from Endo International.

Item 1B.      Unresolved Staff Comments

None.