The maximum dosage of Esomeprazole varies for different diseases, such as for reflux esophagitis, its maximum dosage is 40mg per day. Esomeprazole belongs to the proton pump inhibitor, can inhibit the secretion of gastric acid, clinically, it is mainly used for gastroesophageal reflux disease and eradication of Helicobacter pylori. The common specifications of this product are 20mg/tablet and 40mg/tablet. For the treatment of reflux esophagitis, the dosage is 40mg once daily; for the eradication of Helicobacter pylori, the dosage is 20mg twice daily. Adverse effects of this product include headache, nausea, diarrhea, constipation, dry mouth, flatulence, etc. It is contraindicated for those who are allergic to this product. The above is only part of the dosage of Esomeprazole, the specific dosage should be based on the patient’s condition. Please follow the doctor’s instructions to use the drug, do not blindly use the drug on your own.