The main side effects of Ursodeoxycholic Acid Tablets are gastrointestinal symptoms such as nausea, vomiting, diarrhea, abdominal pain, heartburn, abdominal distension and discomfort, and allergic reactions. 1. Digestive tract symptoms: Ursodeoxycholic acid tablets may cause nausea, vomiting, diarrhea, abdominal pain, heartburn, diarrhea, constipation, abdominal distension and discomfort. Do not overdose Ursodeoxycholic Acid Tablets, or electrolyte disorders will occur. 2. Allergic reaction: Ursodeoxycholic acid tablets may cause urticaria, rash, local redness and itching of the skin. For acute cholecystitis, gallstones, peptic ulcer patients with caution. In addition to this there will be headache, dizziness, weakness and other discomforts, it is recommended to recommend the use of medication under the guidance of a doctor, not blindly self-medication to avoid adverse effects.