Epicritic gastritis can take omeprazole for 1~2 weeks, and the drug can be stopped when the symptoms are relieved. Gastroscopy only superficial erosive gastritis, nausea, acid reflux, heartburn, indigestion and other symptoms can be relieved to stop the drug, usually take 1~2 weeks, can also be taken for a slightly longer period of time, but should not be taken for more than 8 weeks. Omeprazole belongs to the proton pump inhibitors and is used to treat digestive disorders. Common adverse reactions include the occurrence of dry mouth, mild nausea, vomiting, abdominal distension, constipation, abdominal pain, etc. It is contraindicated for those who are allergic to omeprazole, those with severe renal insufficiency, infants and young children, pregnant women, and breastfeeding women. The drug should be used under the guidance of a physician.