Synonyms: Betahistine Dihydrochloride, N-Methyl-2-pyridineethanamine hydrochloride (1:2), N-Methyl-2-pyridineethanamine dihydrochloride, 2-[2-(Methylamino)ethyl]pyridine dihydrochloride, Betahistine dihydrochloride, Betahistine hydrochloride, Betaserc, PT 9, Serc, Sinmenier, Vasomotal