The main ingredient of colloidal bismuth pectin capsules is colloidal bismuth pectin, which is mainly used for the treatment of gastric and duodenal ulcers, Helicobacter pylori-associated chronic superficial gastritis and chronic atrophic gastritis. After oral administration, colloidal bismuth pectin capsules form a sol in gastric juice attached to the surface of ulcers and inflammation, forming an effective protective film, isolating gastric acid, protecting the damaged mucosa, and stimulating gastrointestinal mucosal epithelial cells to secrete mucus, which is favorable to the epithelial cells for their own repair, and it is mainly used for the treatment of gastric and duodenal ulcers, H. pylori-associated chronic superficial gastritis and chronic atrophic gastritis. It should be noted that the adverse reactions of this product are related to the dosage, there is no adverse reaction of liver, kidney, nervous system and other adverse reactions under the regular dosage, and nausea, constipation and other gastrointestinal adverse reactions are occasionally seen. Allergic to the product and its components, severe renal insufficiency, pregnant women are prohibited. The dosage should be adjusted under the guidance of a doctor.