Omeprazole enteric-coated tablets have the effect of inhibiting gastric acid secretion. It is mainly used in the treatment of gastric ulcers, duodenal ulcers, stress ulcers, reflux esophagitis and symptoms of Drewe-Ai syndrome. Omeprazole enteric-coated tablets after taking the common adverse reactions are abdominal pain and diarrhea, headache, nausea, gastrointestinal flatulence, constipation, occasionally serum aminotransferase increase, rash, dizziness, drowsiness, insomnia, etc., these adverse reactions are usually mild, can disappear on their own, independent of the dose. Some patients may have gastric mucosal cell hyperplasia and atrophic gastritis. Omeprazole enteric-coated tablets are contraindicated in those who are allergic to the ingredients, those with severe renal insufficiency, infants and young children, and pregnant women. Caution should be exercised in cases of hepatic and renal insufficiency and in lactating women. This medicine should not be chewed. If you need to use, please consult a professional doctor, follow the doctor’s instructions, reasonable use of medication.