Endo Pharmaceuticals is a specialty pharmaceutical company engaged in the research, development, sale and marketing of branded and generic prescription pharmaceuticals used primarily to treat and manage pain. Its products include LIDODERM(R), a topical patch to relieve the pain of postherpetic neuralgia; PERCOCET? and PERCODAN(R) tablets for the relief of moderate-to-moderately severe pain; FROVA? tablets for the acute treatment of migraine attacks with or without aura in adults; ? tablets for the relief of moderate-to-severe acute pain where the use of an opioid is appropriate; ? ER tablets for the relief of moderate-to-severe pain in patients requiring continuous, around-the-clock opioid treatment for an extended period of time; and VOLTAREN? gel, a nonsteroidal anti-inflammatory drug indicated for the relief of the pain of osteoarthritis of joints amenable to topical treatment, such as the knees and those of the hands. VOLTAREN gel has not been evaluated for use on the spine, hip, or shoulder. Sanctura? and its XR version for treatment of overactive bladder, Vantas? for the palliative treatment of advanced prostate cancer, and Supprelin? for the treatment of early onset puberty in children. The company markets its branded pharmaceutical products to physicians in pain management, neurology, surgery, oncology, and primary care. Endo was established in 1997 through a management buyout from DuPont Merck. The company is based in Chadds Ford, PA and employs more than 1,200 employees throughout the U.S