methyl atropine

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A form of atropine, biochemically modified by the addition of a methyl radical, leaving the molecule with a positive charge and rendering it incapable of crossing the blood-brain barrier, so that it blocks peripheral acetylcholine neuroreceptors but allows brain acetylcholine systems to function normally. Compare methyl scopolamine. [From methyl the alkyl radical CH3 derived from methane by removal of one hydrogen atom, from Greek methy wine + hyle wood + English atropine]

Subjects: Psychology.

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