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Medical Definition of Orphenadrine hydrochloride
1. N,N-Dimethyl-2(o-methyl-alpha-phenylbenzoyloxy)ethylamine hydrochloride; the o-methyl analogue of diphenhydramine hydrochloride;it reduces spasm of voluntary muscles, probably by action on the cerebral motor areas; used in the symptomatic treatment of paralysis agitans and drug-induced parkinsonism. (05 Mar 2000)