Questcor Pharmaceuticals, Inc. (Questcor) markets H.P. Acthar Gel (repository corticotropin injection), an injectable drug that is approved for the treatment of certain disorders with an inflammatory component, including the treatment of exacerbations associated with multiple sclerosis (MS), and the treatment of nephrotic syndrome. H.P. Acthar Gel (Acthar) is not indicated for, but is also used in treating patients with infantile spasms (IS). The Company also markets Doral (quazepam), which is indicated for the treatment of insomnia characterized by difficulty in falling asleep, frequent nocturnal awakenings, and/or early morning awakenings. As of December 31, 2008, Acthar was approved in the United States for the treatment of exacerbations associated with MS, nephrotic syndrome and many other conditions with an inflammatory component.