The chemical Dextromethorphan has a known molecular formula of C18-H25-N-O. Synonyms may include: 4-21-00-01367 (Beilstein Handbook Reference), BA 2666, BRN 0088549, Destrometerfano [DCIT], Dextromethorfan [Czech], Dextromethorphane [INN-French], Dextromethorphanum [INN-Latin], Dextrometorfano [INN-Spanish], Dextromorphan, EINECS 204-752-2, HSDB 3056, delta-Methorphan (ChemID). Dextromethorphan has been assigned a MeSH pharmacological action of: Excitatory Amino Acid Antagonist.