The chemical Dextromethorphan hydrobromide has a designated molecular formula of C18H26BrNO and a molecular weight of 352.316 g/mol. Synonyms may include: Antussan, Demorphan, Dextromethorphan bromide, Dextrometorphan hydrobromide, Dormethan, EINECS 204-750-1, Medicon, Methorate hydrobromide, d-Methorphan hydrobromide, d-3-Methoxy-N-methylmorphinan hydrobromide, Metrorat, 9-alpha,13-alpha,14-alpha-Morphinan (ChemID). Dextromethorphan hydrobromide has been assigned a MeSH pharmacological action of: Excitatory Amino Acid Antagonist.