deprenyl(redirected from deprenil)
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A noncompetitive inhibitor of monoamine oxidase selective for the type B isozyme, which is responsible for oxidative deamination of dopamine in the brain. The drug is used as an antiparkinsonian agent.
A prescription drug used to treat Parkinson’s disease, which has acquired currency among some practitioners of alternative medicine as an anti-ageing substance; deprenyl acts on the substantia nigra., a region of the brain that is believed to age more rapidly than others, by blocking the degradation of dopaminergic neurotransmitters.