It is used to treat gastric and duodenal ulcers and gastroesophageal reflux disease, a condition in which the acid in the stomach washes back up into the esophagus. Omeprazole is also used to treat Zollinger-Ellison disease, a condition in which the stomach produces too much acid. Omeprazole is also used to treat dyspepsia, a condition that causes sour stomach, belching, heart burn, or indigestion.
Omeprazole works by decreasing the amount of acid produced by the stomach.
This medicine is available only with your doctor's prescription. In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes. However, studies in animals have shown that omeprazole may cause harm to the fetus.