A course of colloidal bismuth tartrate capsules is 2 weeks for the treatment of Helicobacter pylori infection, while the treatment of gastritis usually does not exceed 4 weeks. Colloidal bismuth tartrate gel is a mucosal protection drug, which can help ulcer healing, absorption of inflammation and killing Helicobacter pylori by forming a protective layer on the surface of gastrointestinal mucosa and stimulating mucus secretion from mucosal epithelial cells. It can be used to treat peptic ulcer, diarrhea, chronic superficial gastritis, chronic atrophic gastritis and other diseases. Colloidal bismuth tartrate capsule may cause nausea, constipation, black stool, allergies and other side effects, long-term large doses may also lead to bismuth poisoning nausea, vomiting, tongue and throat pain, diarrhea, blood in stool and other bismuth toxicity symptoms, so take a course of treatment is generally no more than 4 weeks. Patients who are allergic to this drug, with renal insufficiency and pregnant women should not take it. It is not recommended to take colloidal bismuth tartrate capsules on your own, and it is recommended to take it under the guidance of a doctor.