Patients with stomach pain can take omeprazole, and omeprazole is often used as the first choice of medication. If you are allergic to omeprazole, you should not take omeprazole. If you have other special diseases, such as heart disease, you should not take omeprazole, and you need to take other acid suppressants, so we suggest you consult a specialist. Stomach pain is mostly caused by diseases of the stomach, and is usually caused by excessive secretion of stomach acid, patients can be treated with drugs that inhibit the secretion of stomach acid. Omeprazole is the representative drug among proton pump inhibitors, and its acid-suppressing effect is relatively strong. Of course, the therapeutic effect varies from person to person, not all people taking omeprazole treatment are very effective, it may be necessary to switch to other proton pump inhibitors, such as esomeprazole.