Endo Pharmaceuticals researches, develops, and sells pharmaceutical products. The company offers products for therapeutic areas that include pain management in the areas of postherpetic neuralgia, osteoarthritis, migraine; urology and oncology; and endocrinology for central precocious puberty and hypogonadism. The company was formerly known as Endo Laboratories LLC and changed its name in 1997. It was founded in 1920 and is based in Malvern, Pennsylvania.