Omeprazole enteric-coated capsules, the main ingredient of which is omeprazole, are mostly used clinically in the treatment of peptic gastric ulcers, duodenal ulcers, reflux esophagitis, and Zuo-Ai syndrome. It should be taken orally half an hour before meals and should not be chewed. Omeprazole enteric-coated capsules are indicated for gastric ulcers, duodenal ulcers, stress ulcers, reflux esophagitis, and Dreh-Eltzinger syndrome (gastrinoma). It is contraindicated for those who are allergic to the product, those with severe renal insufficiency and infants. Adverse reactions such as dry mouth, mild nausea, vomiting, abdominal distension, constipation, diarrhea and abdominal pain may occur. There may be feeling abnormal, dizziness, headache, drowsiness, insomnia, peripheral neuritis and other adverse reactions. Prolonged application of omeprazole can lead to vitamin B12 deficiency. The drug should be used in accordance with medical advice to avoid adverse reactions. Please use the drug under the guidance of a doctor.