Contraindications to colloidal bismuth capsules: 1, eat this drug appears to have allergies, such as rashes, itchy skin, dermatitis and other conditions are prohibited. 2, renal insufficiency is prohibited in patients, such as creatinine up to 500u / L-700u / L creatinine, urea nitrogen are high patients are prohibited, and if there is significant nausea, constipation, digestive symptoms of patients are also prohibited to avoid Patients with significant nausea, constipation and digestive symptoms are also prohibited from using it to avoid serious adverse reactions. It is a drug that promotes gastrointestinal motility and protects the gastric mucosa, and can treat peptic ulcers, especially for ulcers associated with Helicobacter pylori.