GelTex Pharmaceuticals, Inc. is focused on the development of non-absorbed, polymer-based pharmaceuticals that selectively bind to and eliminate target substances from the intestinal tract. The Company's leading products include Renagel Capsules (sevelamer hydrochloride) and Cholestagel (colesevelam hydrochloride). The Company's Renagel product is a phosphate binder that is used for the treatment of hyperphosphatemia and its Cholestagel product is used to reduce the level of cholesterol. Geltex Pharmaceuticals are one of the world's leading biotechnology companies. The company's products and services are focused on rare inherited disorders, kidney disease, orthopaedics, cancer, transplant and immune disease and diagnostic testing.