 Lafutidine is used to treat gastric ulcers, duodenal ulcers, as well as wounds in the lining of the stomach associated with acute gastritis and acute exacerbation of chronic gastritis.Adverse events observed during clinical trials included constipation, diarrhea, drug rash, nausea, vomiting and dizziness.Like other H2 receptor antagonists, lafutidine acts by preventing the secretion of gastric acid.