Zantac works to reduce pain resulting from indigestion and prevent stomach pain caused by indigestion or choosing certain foods and drinks and to treat stomach ulcers and ulcers in the first part of the intestine and esophageal bloating and gastroesophageal reflux syndrome and esophagitis.
Zantac falls under the category of drugs known as histamine-2 inhibitors, as it works to prevent histamine from reaching its receptors on the surface of stomach cells, which leads to reducing the production of stomach acid.