What is cimetidine (generic Tagamet)?
Cimetidine is a medication used to treat conditions related to excessive stomach acid production. It is available under the brand name Tagamet and has generic versions. Cimetidine belongs to the H2 receptor antagonist drug class, which helps reduce the amount of acid produced by the stomach.
Cimetidine is available both over-the-counter (OTC) and with a prescription, depending on the dosage and intended use.