The price of colloidal bismuth in pectin is usually between $10 and $30, which is related to the manufacturer, the situation sold in hospitals, and the price of transportation. Colloidal bismuth pectin is a commonly used gastric mucosal protectant, can be used to relieve abdominal pain caused by excessive gastric acid secretion, commonly used in chronic gastritis, gastric ulcer, duodenal ulcer, etc., especially for the relief of Helicobacter pylori infection leading to ulcer-induced abdominal pain has a very good therapeutic effect, and other common gastric mucosal protectant also has aluminum sulphate, bismuth potassium citrate, misoprostol and so on. Gastric mucosal protectants are often used in combination with acid-suppressing drugs and gastric stimulants for the treatment of peptic ulcers and gastritis, and common drugs include omeprazole, cimetidine, domperidone, and so on. The price of colloidal bismuth should be based on the actual local purchase price, the drug should be taken under the guidance of a doctor.