Ranitidine works to relieve heartburn associated with indigestion and prevent heartburn associated with indigestion or eating a limited number of foods and drinks, duodenal ulcers, gastric ulcers, esophageal reflux, Zollinger-Ellison syndrome, and esophagitis.
Ranitidine is a treatment that belongs to a group of drugs known as histamine-2 blockers, as it works to block the access of histamine to its receptors that remain on the surface of stomach cells, thus reducing the release of acid from the stomach.