Ursodeoxycholic acid capsules can protect the liver when used in moderation, but large doses may cause liver damage. Ursodeoxycholic acid is a kind of liver protection drug, which is used to inhibit the reabsorption of cholesterol in the intestinal tract and reduce the secretion of cholesterol into the bile, so as to reduce the saturation degree of cholesterol in the bile and make the cholesterol stones dissolve gradually, and at the same time, it promotes the secretion effect of hepatocytes and immune regulation. The drug is suitable for biliary cirrhosis, cholesterol stones, chronic viral hepatitis C, etc. It plays a role in dissolving stones and protecting liver cells. Because the drug is metabolized by the liver, the use of large doses will lead to an increased metabolic burden on the liver and cause some liver function damage. Therefore, if you need to take the drug, you should go to a regular medical institution and take it under the guidance of a doctor, do not use it without authorization.