The use of omeprazole and mosapride should depend on the specific condition to choose the appropriate dosage, it is recommended to use under the guidance of a doctor. Omeprazole is a proton pump inhibitor, can inhibit gastric acid secretion, clinically used in the treatment of gastric and duodenal ulcers, gastroesophageal reflux disease, Droege’s syndrome and so on. For the treatment of gastric and duodenal ulcers and gastroesophageal reflux disease, Omeprazole should be used 20mg at a time, to be taken twice a day, swallowed once a day when waking up in the morning or once in the morning and once in the evening, and be careful to take it orally before meals. The specific course of treatment should follow the doctor’s instructions, gastric ulcer is usually 4~8 weeks, duodenal ulcer treatment course is usually 2~4 weeks. In the treatment of Drexel-Alexander syndrome, it is usually 60mg once a day. Mosapride is a pro-gastrointestinal stimulant used to treat functional dyspepsia with heartburn, belching, nausea, and epigastric bloating. It is given orally as 5mg 3 times a day before meals or as directed by your doctor. Omeprazole should not be used in people with a history of allergy to this drug, and should not be used in combination with nelfinavir, rilpivirine, etc.; there may be headache, abdominal pain, constipation, diarrhea, hypomagnesemia, and other adverse reactions after use. Mosapride is contraindicated in people with a history of hypersensitivity to this drug. After use may cause diarrhea, abdominal pain, dry mouth, rash, tiredness and other adverse reactions. To summarize, the use of omeprazole and mosapride is only for reference, the specific need to go to the gastroenterology department, to clarify the condition and then follow the doctor’s instructions to use, such as discomfort should be immediately consult a doctor.