Questcor Pharmaceuticals is a biopharmaceutical company offering products to help patients with serious, difficult-to-treat medical conditions. The company currently focuses on: neurology and nephrology, which are two areas in the medicine field that are significantly failing to meet needs. Its principal product is H.P Acthar® Gel (repository corticotropin injection), a naturally-derived formulation of adrenocorticotropic hormones used in a variety of disorders having an inflammatory component. As well, Questcor is backing research in a number of rare conditions, especially for treatment-resistant patient populations. As well, the company is supporting research efforts to better comprehend disease processes and therapeutic mechanisms of action in conditions where Acthar might potentially play a role in treatment.