Pantoprazole is used to treat gastroesophageal reflux disease (GERD), a condition in which backward flow of acid from the stomach causes heartburn and injury of the food pipe (esophagus). It is also used to treat conditions where the stomach produces too much acid, such as Zollinger-Ellison syndrome. Pantoprazole is in a class of medications called proton-pump inhibitors. It works by decreasing the amount of acid made in the stomach.
