Treats Frequent Heartburn Prilosec OTC, Omeprazole Delayed Release 20mg, Acid Reducer, Treats Frequent Heartburn for 24 Hour Relief, All Day, All Night*, 20mg #1 Doctor and Gastroenterologist Recommended With one Prilosec OTC pill each morning, block your heartburn for a full 24 hours.* Heartburn happens when stomach acid refluxes into the esophagus. Prilosec OTC's delayed-release formula helps it pass through the tough stomach acid, preventing excess acid production to block frequent heartburn.* Prilosec OTC is the #1 Doctor and Gastroenterologist recommended frequent heartburn medicine for over 15 years. Contains the active ingredient...