It is used in alone or in combination therapy to treat primary biliary cirrhosis. It helps improve liver function by inhibiting the production of bile acid and increasing the removal of bile acid from the liver. This reduces the bile acid in the liver and hence prevents its toxic effects. It may be taken with or without food. You should take it regularly at evenly spaced intervals as per the schedule prescribed by your doctor. Taking it at the same time every day will help you to remember to take it. You should always complete the full course of the medicine as prescribed by your doctor. Do not stop taking it until you have finished.