Tauroursodeoxycholic acid(TUDCA)is a natural bile acid isolated from bear bile. It is a chemical preparation that is present in the bile in combination with taurine in the body. It is a hydrophilic bile acid, a cholesterol stone.

It can reduce the secretion of cholesterol in the liver, reduce the saturation of cholesterol in the bile, promote the secretion of bile acids, increase the solubility of cholesterol in the bile, dissolve the cholesterol stones or prevent the formation of stones. In addition, it can increase the amount of bile secretion, relax the bile duct sphincter to produce a choleretic effect, which is conducive to the discharge of stones.

In short, it can be used to treat cholesterol stones, hyperlipidemia, biliary secretion disorders, primary biliary cirrhosis, chronic hepatitis, bile reflux gastritis, and prevention of acute rejection and response to liver transplantation.