Bismuth medicine includes bismuth potassium citrate, compound bismuth aluminate granules, colloidal bismuth, bismuth medicine can increase the blood flow of gastric mucosa, but also can form a kind of protective layer, attached to the gastric mucosa ulcer and inflammation site, for the stomach disease has a therapeutic effect. Bismuth potassium citrate, also called Rejuveno, is a common stomach medicine, which mainly serves to protect the gastric mucosa and promote the repair of gastric mucosa, and has the effect of killing Helicobacter pylori. Compound bismuth aluminate granules, also known as Gastric Bismuth, can not only protect the gastric mucosa, but also inhibit the secretion of gastric acid and reduce the stomach pain caused by gastritis and gastric ulcer disease. After taking bismuth colloid can stimulate the epithelial tissue of gastric mucosa to secrete mucus, which can better protect the gastric mucosa, and also can separate the gastric mucosa and gastric acid, and promote the repair of gastric mucosa.