Zantac

Zantac is an H2 receptor blocker. It works by blocking the action of histamine in the stomach. This reduces the amount of acid the stomach makes. Reducing stomach acid helps to reduce heartburn, to heal irritation of the esophagus, and to heal ulcers of the stomach or intestines.

Zantac is used for treating certain conditions that cause your body to make too much stomach acid (e.g., Zollinger-Ellison syndrome). It is also used to treat ulcers of the small intestine that have not responded to other treatment. It may also be used for other conditions as determined by your doctor.