There is no so-called optimal time to take esomeprazole, clinical generally recommended to take 30 minutes to 1 hour before meals, should follow the doctor’s instructions for medication. Commonly used dosage forms of esomeprazole include enteric-coated tablets and enteric-coated capsules. The drug insert does not specify the optimal time to take this product. Since eating slows down and reduces the absorption of the drug, it is usually recommended to take the drug 30 minutes to 1 hour before a meal. The exact dosage should be prescribed by the doctor. Esomeprazole is used for the treatment of gastroesophageal reflux disease (GERD), duodenal ulcers associated with Helicobacter pylori, the prevention of recurrence of peptic ulcers associated with Helicobacter pylori, and the treatment of gastric ulcers associated with non-steroidal anti-inflammatory drugs (NSAIDs). Adverse reactions to this product can be seen as headache, abdominal pain, nausea, diarrhea, flatulence, constipation, and dry mouth. It is contraindicated for those who are allergic to this product, and the combination of this product with nelfinavir is contraindicated. It should be used reasonably under the guidance of a doctor.