The chemical Cimetidine has a designated molecular formula of C10H16N6S and a molecular weight of 252.340 g/mol. Synonyms may include: Acibilin, Acinil, CCRIS 3247, Cimal, Cimetag, Cimetidina [INN-Spanish], Cimetidinum [INN-Latin], Cimetum, N-Cyano-N'-methyl-N''-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)guanidine, 1-Cyano-2-methyl-3-(2-(((5-methyl-4-imidazolyl)methyl)thio)ethyl)guanidine (ChemID). Cimetidine has been assigned a MeSH pharmacological action of: Cytochrome P-450 CYP1A2 Inhibitor, Histamine H2 Antagonist.