Omeprazole is indicated for gastric ulcers, duodenal ulcers, stress ulcers, reflux esophagitis, and Dreh-Eltzinger syndrome (gastrinoma). Omeprazole is a proton pump inhibitor, and its main action is to inhibit the activity of potassium hydroxide ATPase, which inhibits the secretion of gastric acid and raises the ph value of the stomach. Mainly treated diseases include gastric ulcer, duodenal ulcer, stress ulcer, reflux esophagitis and Droe-Ayer syndrome (gastrinoma) and other diseases can also be applied. This drug can be taken to relieve symptoms when the patient has clinical symptoms such as heartburn, acid reflux, bloating, poor appetite (poor appetite) and nausea. When taking Omeprazole, it is best to use it under a doctor’s supervision.