Tags: Drug.
Cholestyramine or colestyramine (Questran Questran Light Cholybar Olestyr) is a bile acid sequestrant which binds bile in the gastrointestinal tract to prevent its reabsorption. It is a strong ion exchange resin which means that it can exchange its chloride anions with anionic bile acids in the gastrointestinal tract and bind them strongly in the resin matrix.
