Omeprazole and GastroSu Granules are both medicines for treating gastric problems and can be used at the same time, but it is recommended that Omeprazole should be taken orally before meals, and GastroSu Granules should be taken orally after meals for better results. Omeprazole is a proton pump inhibitor, which inhibits the secretion of gastric acid, while Gastric Su Granules is a proprietary Chinese medicine, which has the effect of regulating qi, eliminating flatulence and relieving stomach pain. Omeprazole is generally preferred for the treatment of gastritis, peptic ulcer, etc. Especially gastritis patients, if accompanied by bloating, nausea, acid reflux and other symptoms, the effect of taking omeprazole alone is not ideal, can be combined with Gastric Sulphur Granules to strengthen the bloating and other treatments. However, the gastric Su particles and omeprazole treatment course is half a month, it is recommended that patients follow the guidance of the specialist doctor according to the course of treatment, not blindly over the instructions to use the drug.