With one Prilosec OTC® pill a day, you can block frequent heartburn symptoms before they strike for a full 24 hours of heartburn relief. That's because Prilosec OTC fights a heartburn day and night by shutting down many of the acid pumps in your stomach. It's the all-day, all-night heartburn protection you need.*
* It's possible while taking Prilosec OTC. Use as directed for 14 days for treating frequent heartburn.