Omeprazole decreases the amount of acid produced in the stomach.
Omeprazole is used to treat symptoms of gastroesophageal reflux disease (GERD) and other
conditions caused by excess stomach acid. Omeprazole is also used to promote healing of erosive
esophagitis (damage to your esophagus caused by stomach acid).
Omeprazole may also be given together with antibiotics to treat gastric ulcer caused by infection
with helicobacter pylori (H. pylori).
Omeprazole may also be used for other purposes not listed in this medication guide.