Bismuth potassium citrate has no significant side effects or hazards. There may be an ammonia taste in the mouth during administration and may stain the tongue and feces black, and nausea, constipation and other gastrointestinal reactions may occur in individual patients taking it. This drug should not be taken in large doses for a long time, when the blood bismuth concentration exceeds 0.1g/ml, it may lead to bismuth encephalopathy. Bismuth potassium citrate is a gastrointestinal mucosal protector, mainly used for the treatment of chronic gastritis and relief of stomach pain, heartburn (heartburn) and acid reflux caused by excessive stomach acid. Medication should be noted: severe renal insufficiency is prohibited, pregnant women are prohibited, the use of drugs in the elderly is not clear. Half an hour before and after taking the medicine and when taking the medicine should not be taken at the same time acid-producing drugs, consumption of high-protein diet and other alkaline drugs. If you need to use bismuth potassium citrate, it is recommended to consult a professional doctor, follow the doctor’s instructions for standardized treatment, not blindly use the drug at will.