(oh-me-PRAY-zol)
Omeprazole (Prilosec®) is a medicine that is used to decrease the amount of acid that is made by the stomach. It may be used to treat ulcers, gastroesophageal reflux (GER or GERD), and heartburn. It is available as tablet, capsule, and powder for oral suspension. Your pharmacy may also be able to make a liquid for you.