The main side effects of Eusebio are digestive system and liver function damage, as well as hematological system and allergic reactions. The generic name of Ursodeoxycholic acid is ursodeoxycholic acid, which is a kind of digestive medicine with choleretic effect and is mainly used clinically for the treatment of cholestatic liver disease, bile reflux gastritis, or chronic hepatitis and other hepatobiliary system diseases. The use of ursodeoxycholic acid may cause allergic reactions such as skin itching, rash, erythema, hair loss, etc. Long-term use of ursodeoxycholic acid may increase peripheral platelets or decrease white blood cells. Patients taking ursodeoxycholic acid may also experience gastrointestinal side effects such as diarrhea, loose stools, nausea, loss of appetite, and constipation. Ursodeoxycholic acid may also cause elevated transaminases, liver function damage, and calcification and jaundice of gallstones. Therefore, liver function should be checked regularly during the drug administration, especially during the first three months. If recurrent abdominal pain occurs while taking the drug, the drug should be discontinued immediately and the patient should be promptly seen by the local regular medical institution.