This article was first published on February 19, 2024. It was last reviewed, updated, or edited on February 20, 2024. Proton pump inhibitors (PPIs) are widely used to reduce gastric acid secretion in a variety of conditions including gastritis, gastric ulcers, and gastroesophageal reflux disease (GERD). PPIs available in the USA include (alphabetically): Dexlansoprazole (Dexilant®)…