The main effects of Lafutidine are inhibition of gastric acid secretion as well as protection of gastric mucosa, promotion of mucosal repair, increase of gastric mucosal blood flow and increase of mucus secretion. Lafutidine can inhibit gastric acid secretion, inhibit gastric acid secretion caused by histamine, pentagastrin, food, etc. It also has the effect of protecting gastric mucosa. It can promote ulcer healing and relieve symptoms, and can be used for gastric ulcer, duodenal ulcer and other diseases. It is forbidden to use for people who are allergic to the ingredients of Lafutidine. Use with caution in patients with hepatic or renal insufficiency, the elderly, and patients on dialysis. Headache, insomnia, drowsiness, palpitations, diarrhea or constipation may occur after using the drug, and in severe cases, rash and hives may occur. The above drugs should be used under the guidance of a professional physician, and should not be used on their own to avoid adverse reactions.