Omeprazole enteric-coated capsule has the effect of inhibiting the secretion of gastric acid, which is mainly used for the treatment of gastric or duodenal ulcer and other diseases. Omeprazole enteric-coated capsule can block the final step of gastric acid secretion, so this product has strong and long-lasting inhibitory effect on gastric acid secretion caused by various reasons. It is mainly used for the treatment of gastric or duodenal ulcers, stress ulcers, reflux esophagitis, and Droe-Ayer syndrome and other diseases. Patients using omeprazole enteric-coated capsules often appear after the adverse reactions include: headache, nausea, diarrhea and abdominal pain, gastric distension, constipation and other symptoms, a few will appear serum aminotransferase level increase, rash, dizziness, drowsiness, insomnia and other symptoms, individual patients with long-term use of the drug caused gastric mucosal cell hyperplasia, atrophic gastritis. Note before use: patients allergic to omeprazole enteric-coated capsules are prohibited, patients with severe renal insufficiency are prohibited, patients with hepatic or renal insufficiency should be cautious, pregnant women and lactating women are prohibited, infants and young children are prohibited, and the effectiveness of the use of the drug in the elderly is not clear. If patients need to use omeprazole enteric-coated capsules, please consult a professional doctor in advance and strictly follow the doctor’s instructions.