{"id":636691,"date":"2026-06-08T18:21:12","date_gmt":"2026-06-08T22:21:12","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=636691"},"modified":"2026-06-08T18:21:12","modified_gmt":"2026-06-08T22:21:12","slug":"prilosec-otc","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/prilosec-otc\/","title":{"rendered":"Is Prilosec available over the counter? OTC vs. Rx omeprazole explained"},"content":{"rendered":"

If you’ve ever reached for Prilosec to relieve<\/span> heartburn<\/span><\/a>, you may have noticed it comes in both over-the-counter (OTC) and prescription strengths.<\/span><\/p>\n

Prilosec<\/span><\/a> (<\/span>omeprazole<\/span><\/a>) is available without a prescription for frequent heartburn, while prescription omeprazole may be used for other conditions and at different doses.<\/span><\/p>\n

Here’s what to know about OTC Prilosec, how it compares with prescription omeprazole, and when a prescription may be the better option.<\/span><\/p>\n

What is Prilosec (omeprazole)?\u00a0<\/b><\/h2>\n

Prilosec is the brand name for<\/span> omeprazole<\/span><\/a>, a proton pump inhibitor (<\/span>PPI<\/span><\/a>) that reduces stomach acid production. Brand-name Prilosec and generic omeprazole contain the same active ingredient and are both widely available. They’re used to treat<\/span> heartburn<\/span><\/a> and gastroesophageal reflux disease (<\/span>GERD<\/span><\/a>). According to the<\/span> National Institutes of Health<\/span><\/a>, omeprazole is one of the most commonly prescribed drugs in the United States.<\/span><\/p>\n

PPIs like omeprazole<\/span> work by<\/span><\/a> blocking acid pumps in the stomach lining. This lowers stomach acid, helping prevent or treat acid reflux, heartburn, and, with higher-strength prescription Prilosec,<\/span> stomach ulcers or esophageal damage<\/span><\/a>.<\/span><\/p>\n

Is Prilosec available over the counter?\u00a0<\/b><\/h2>\n

Yes, Prilosec is available over the counter as<\/span> Prilosec OTC<\/span><\/a>, a 20-milligram (mg) omeprazole tablet. Omeprazole OTC is also available under several store-specific generics.\u00a0<\/span><\/p>\n

Prilosec OTC is specifically<\/span> approved<\/span><\/a> to treat frequent heartburn (occurring two or more days per week) for up to two weeks at a time. Prilosec OTC is \u201cabsolutely not\u201d intended to be used daily indefinitely, according to<\/span> Supriya Rao, MD<\/span><\/a>, a board-certified gastroenterologist, obesity medicine, and lifestyle medicine physician in the greater Boston area.<\/span><\/p>\n

Though Prilosec OTC is available without a prescription at most pharmacies and retailers, it isn\u2019t the best medicine for every acid-related condition. Dr. Rao points out that it\u2019s <\/span>not a fast-acting<\/span><\/a> heartburn medicine like Tums or<\/span> Mylanta<\/span><\/a>. Prescription Prilosec is also a more appropriate dose for certain symptoms and conditions.<\/span><\/p>\n

What is the difference between OTC Prilosec and prescription omeprazole?\u00a0<\/b><\/h2>\n

The biggest differences between OTC Prilosec and prescription omeprazole are dosage strength, approved uses, and how long you can safely take them.\u00a0<\/span><\/p>\n