The difference between magnesium aluminum carbonate tablets and omeprazole mainly lies in its pharmacological effects and different indications. 1. Pharmacological effects: magnesium aluminum carbonate tablets are antacid and gastric mucosa protection drugs, with neutralization of gastric acid, preventing pepsin and bile acid damage to the stomach, and enhance the role of gastric mucosal protective factors; omeprazole is a proton pump inhibitor, with the effect of inhibiting gastric acid secretion. 2. Indications: Magnesium aluminum carbonate tablets are mainly used for peptic ulcer, acute and chronic gastritis, esophagitis, bile reflux gastritis, etc. Omeprazole is mainly used for peptic ulcer, stress ulcer, reflux esophagitis, Zuo Ai syndrome. If you need to use drugs, should be standardized under the guidance of a doctor, do not use on their own to avoid adverse effects.