bile acid resin

bile acid resin A substance that binds in the intestine with bile acids that contain cholesterol and is then eliminated in the stool. The major effect of bile acid resin is to lower LDL-cholesterol. Bile acid resin may be prescribed, together with a statin medication, for patients with heart disease, to reduce cholesterol. Cholestyramine (brand name: Questran) and colestipol (Colestid) are examples of bile acid resins. Side effects may include constipation, bloating, nausea, and gas. Although bile acid resin is not absorbed, it may interfere with the absorption of other medicines if taken at the same time as the other medicines. See also statin.