Question: are zantac and tagamet the same?
Answer: Are Tagamet and Zantac the Same Thing? Tagamet (cimetidine) and Zantac (ranitidine hydrochloride) are histamine receptor antagonists used to treat and prevent ulcers. Tagamet is also used to treat conditions that cause the stomach to produce too much acid, and to treat gastroesophageal reflux disease (GERD).