- Rabeprazole is a proton pump inhibitor that decreases the amount of acid produced in the stomach.Rabeprazole is used short-term to treat symptoms of gastroesophageal reflux disease in adults and children who are at least 1 year old.Rabeprazole is used only in adults to treat conditions involving excessive stomach acid
- such as Zollinger-Ellison syndrome. Rabeprazole is also used in adults to promote healing of duodenal ulcers or erosive esophagitis (damage to your esophagus caused by stomach acid).