Cimetidine

Cimetidine is a small-molecule medicine with the molecular formula C10H16N6S and a molecular weight of about 252.35, recorded in the ChEMBL database as an approved drug whose first approval year is 1977. Its nonproprietary name carries the stem -tidine, which ChEMBL defines as the H2-receptor antagonists of the cimetidine type. The WHO Anatomical Therapeutic Chemical index files it as A02BA01 among the H2-receptor antagonists, inside the group for drugs for peptic ulcer and gastro-oesophageal reflux disease, and assigns it a defined daily dose of 0.8 g for oral use. ChEMBL lists its approved indications as gastroesophageal reflux, peptic ulcer, duodenal ulcer and heartburn. This entry records classification and approval facts only and is not medical advice.