Marvin R. Haselhorst

Questcor Pharmaceuticals, Inc. was engaged in development, marketing and sale of prescription drugs. It operated as a biopharmaceutical company which focuses on the treatment of patients with serious, difficult-to-treat autoimmune and inflammatory disorders. The company's primary product was H.P. Acthar Gel, an injectable drug for the treatment of proteinuria in the nephrotic syndrome of the idiopathic type, or NS, the treatment of acute exacerbations of multiple sclerosis, or MS, in adults, the treatment of infantile spasms, or IS, in infants and children under two years of age, and the treatment of certain rheumatology related conditions, including the treatment of the rare and closely related neuromuscular disorders dermatomyositis and polymyositis. Questcor Pharmaceuticals was founded in September 1992 and was headquartered in Anaheim, CA.

Enterprises Holdings, Inc. designs, manufactures, and markets products for the orthopedic sports medicine market. The company was founded by Mark A. Johanson on August 16, 2000 and is headquartered in Hazelwood, MO.

Ocera Therapeutics, Inc. manufactures pharmaceuticals products. The company was founded in 2004 and is headquartered in Hazelwood, MO.

Mallinckrodt Hospital Products, Inc. operates as a biopharmaceutical company, which develops and commercializes proprietary product candidates used in the hospital setting. The firm offers OFIRMEV (acetaminophen injection), a proprietary intravenous formulation of acetaminophen for the management of mild to moderate pain, the management of moderate to severe pain with adjunctive opioid analgesics and the reduction of fever. The company was founded by Theodore R. Schroeder, David A. Socks, and Cam L. Garner on May 26, 2004 and is headquartered in Hazelwood, MO.

Mallinckrodt Brand Pharmaceuticals, Inc. engages in the manufacture of pharmaceutical and health products. The company was founded on September 23, 2015 and is headquartered in Hazelwood, MO.

Part of Mallinckrodt Plc, Mallinckrodt US Holdings, Inc. is a pharmaceutical company. The private company is based in Hazelwood, MO.