Lansoprazole is taken for 2-4 weeks as a course of treatment. Lansoprazole is a common acid-suppressing drug, the main effect is to inhibit the activity of the proton pump of the stomach wall, blocking the secretion of gastric acid, which can be used to treat gastric diseases, but also in the treatment of Helicobacter pylori bacteria are also often used. Lansoprazole a course of dates, and the patient’s treatment of the disease is directly related to the patient’s stomach with gastric ulcer disease when taking Lansoprazole is 2 weeks a course of treatment. Duodenum due to the effect of the drug is affected, the consumption time is relatively long, need 4 weeks of time, some people are used to treat chronic gastritis, due to chronic gastritis treatment is more difficult, so the time is also longer need about 4 weeks of time. Lansoprazole should be avoided when used for more than 8 weeks, otherwise it will have an impact on the function of the stomach, and the treatment program needs to be adjusted for patients whose condition has not improved in 8 weeks.