Rezudel is a gastric mucosal protector, which forms a layer forming a diffuse protective layer on the gastric mucosa, which effectively prevents damage to the gastric mucosa by gastric acid, digestive enzymes and food. The drug also has the effect of reducing the activity of pepsin and increasing the secretion of mucinase, which is one of the mechanisms of its protection of the gastric mucosa. Therefore, its main indications are gastric and duodenal ulcers, acute erosive gastritis and so on. At the same time, because the drug can also kill Helicobacter pylori, so it is also one of the eradication of Helicobacter pylori four consecutive drugs. Usage: 0.3g at a timeSafety is good, routine use of the drug is seldom seen adverse reactions, and occasionally transient side effects, such as ammonia taste in the mouth, gray-black tongue and stool, nausea, vomiting, poor appetite, diarrhea, constipation, headache, dizziness, insomnia and so on.