Proton pump inhibitors (PPIs) are medications that reduce the amount of stomach accident found in the stomach lining. They help relieve symptoms of acid reflux, a condition in which food or liquid goes back up to the esophagus. PPIs can also help treat stomach ulcers.
Also, they can treat lower esophagus damage resulting from acid reflux. PPIs can be used to treat heartburn as well. They come in various brand names such as Prilosec, Nexium, Prevacid, AcipHex, Protonix, Dexilant, or Zegerid.