Omeprazole is a proton pump inhibitor that inhibits gastric acid and is widely used clinically, mainly for the treatment of gastritis, reflux esophagitis, peptic bleeding, peptic ulcer and other diseases. General omeprazole injection clinical usage is determined according to the condition and symptoms, if the symptoms are mild, just simple gastritis, the treatment is usually 40mg once a day. If there is a peptic ulcer complicated with gastrointestinal bleeding and gastric polyps after electrodessication treatment, you can apply 40mg, 2-3 times a day. If treating Helicobacter pylori, it is usually taken orally for 14 days.