A prefix is a letter or group of letters attached to the beginning of a word that changes the word's meaning. Dummies.com. A suffix is a letter or group of letters attached to the end of a word that changes the word's meaning.
Pantoprazole is a proton pump inhibitor drug that inhibits gastric acid secretion. It works on gastric parietal cells to irreversibly inhibit (H+/K+)-ATPase function and suppress the production of gastric acid. It was first sold in 1994 in Germany and became avaliable as a generic medication in 2010.
Pantoprazole is used to treat gastroesophageal reflux disease (GERD), a condition in which backward flow of acid from the stomach causes heartburn and possible injury of the esophagus (the tube between the throat and stomach).