Omeprazole generally cures excessive stomach acid production. Omeprazole is a proton pump inhibitor that can inhibit the secretion of stomach acid. Omeprazole is a drug that can inhibit the secretion of stomach acid and can be used in digestive disorders such as gastritis, peptic ulcer, and gastroesophageal reflux disease. Excessive secretion of stomach acid may be caused by improper eating or diseases such as gastritis, peptic ulcer, GERD, etc. In this case, omeprazole can be applied under the guidance of a doctor for treatment. After taking omeprazole, it can inhibit the secretion of gastric acid, improve the symptoms of stomach pain and acidity, and reduce the stimulation of gastric mucosa by gastric acid. For excessive gastric acid secretion caused by gastrinoma or gastric cancer, simply taking omeprazole is easy to cover up the condition and has no therapeutic effect, which requires surgical treatment. The main adverse reactions are diarrhea, nausea, headache, dizziness, rash, insomnia, etc. The appearance of the above symptoms, you need to stop the application in time. Allergic to the drug, severe renal insufficiency, infants and young children are prohibited. If you feel unwell, it is recommended to consult a doctor in time, and if you need to use medication, you should follow the doctor’s instructions.