Salix Pharmaceuticals Ltd. develops and commercializes prescription drugs and medical devices used in the treatment of gastrointestinal diseases, endocrinology, hepatology, colorectal surgery, and internal medicine. It offers Anusol, Apriso, Colazal, Deflux, Diuril, Fenoglide, MoviPrep, Pepcid, Solesta, and Zegerid. The company was founded by randy W. Hamilton and Lorin K. Johnson in1989 and is headquartered in Bridgewater, NJ.