Omeprazole enteric-coated tablets are usually taken before meals. Omeprazole enteric-coated tablets are a kind of proton pump inhibitor, mainly used in the treatment of gastric ulcer, duodenal ulcer, reflux esophagitis and other diseases, can inhibit the secretion of gastric acid, alleviate gastric acid, gastric pain and other discomforts, due to the fact that the drug is absorbed in the intestinal tract, only when taken on an empty stomach can it be quickly from the stomach into the intestinal tract, be absorbed by the intestinal tract, so as to play a role in the efficacy of the drug. Therefore, Omeprazole enteric-coated tablets are usually swallowed in the morning, or taken in the morning and evening before meals, the specific way of taking and taking the dose to follow the doctor’s instructions. Omeprazole enteric-coated tablets after taking the drug adverse reactions are rare, some patients may have headache, nausea, diarrhea, abdominal pain and other symptoms, if the adverse reaction is obvious, need to stop the drug and consult a doctor. In addition, allergic to the product, severe renal insufficiency and infants and young children are prohibited.