Omeprazole is available as Prilosec, Prilosec OTC, and generic omeprazole in the following dosage forms that are taken by mouth. 10 mg delayed-release oral capsules 20 mg delayed-release oral capsules Omeprazole is a proton pump inhibitor that is used to treat symptoms of gastroesophageal reflux disease and other conditions caused by excess stomach acid. The Omeprazole magnesium is viewed as the delayed release version of the original, and therefore the results produced will vary in time. Because there is a salt (magnesium) attached to the Omeprazole, it makes it easy to dissolve and can be taken on an empty stomach or with food. Taking magnesium supplements alongside omeprazole is generally safe but requires careful timing to avoid absorption issues and potential side effects. Learn about Omeprazole Magnesium uses, dosage, side effects, food interactions, and more. Get all the details about Omeprazole Magnesium from MedicinesFAQ. If you've been taking omeprazole (Prilosec), esomeprazole (Nexium), or another proton pump inhibitor (PPI) for acid reflux or heartburn, you may not realize there's a hidden cost to long-term use: magnesium depletion. Omeprazole, sold under the brand names Prilosec and Losec among others, is a medication used in the treatment of gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger–Ellison syndrome. [1] Omeprazole Magnesium Granules package insert / prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions and pharmacology. Omeprazole is a medication that reduces the amount of acid in your stomach. It treats heartburn, stomach ulcers and reflux disease. Omeprazole is also used to treat dyspepsia, a condition that causes sour stomach, belching, heart burn, or indigestion. In addition, omeprazole is used to prevent upper gastrointestinal tract bleeding in seriously ill patients. Omeprazole is a proton pump inhibitor (PPI). It works by decreasing the amount of acid produced by the stomach.