What should I avoid while taking Udfast?
While taking Udfast, avoid taking an antacid preparation without consulting your doctor, as they decrease the effectiveness of Udfast. You should also avoid medicines like cholestyramine or colestipol as they affect the effectiveness of Udfast. So, ask your doctor about the time gap that should be maintained between Udfast and these medicines. Also, avoid taking oral contraceptives, estrogenic hormones and blood cholesterol-lowering agents such as clofibrate as they may increase the chances of developing gallstones and act opposite to the Udfast.