OTC
Proton Pump Inhibitor (Stomach Acid Reducer)
Omeprazole
Last reviewed April 2026
Who is this for?
What is this drug?
Omeprazole is a drug that reduces the amount of acid your stomach produces by blocking the tiny pumps in your stomach lining that release acid, giving your stomach and gut time to heal.
What is it used for?
Stomach ulcerheartburn (acid reflux)chest burning after eatingexcess stomach acidgastritis (stomach inflammation)ulcer caused by bacteria (H. pylori infection when combined with antibiotics)
Available Over The Counter
Available at pharmacies without a prescription. Rules may vary by country.