atropine


at·ro·pine

noun \ˈa-trə-ˌpēn\

Definition of ATROPINE

:  a racemic mixture of hyoscyamine obtained from any of various solanaceous plants (as belladonna) and used especially in the form of its sulfate for its anticholinergic effects (as pupil dilation or inhibition of smooth muscle spasms)

Origin of ATROPINE

German Atropin, from New Latin Atropa, genus name of belladonna, from Greek Atropos, one of the three Fates
First Known Use: 1836

at·ro·pine

noun \ˈa-trə-ˌpēn\   (Medical Dictionary)

Medical Definition of ATROPINE

: a racemic mixture of hyoscyamine usually obtained from belladonna and related plants of the family Solanaceae and used especially in the form of its hydrated sulfate (C17H23NO3)2·H2SO4·H2O for its anticholinergic effects (as relief of smooth muscle spasms or dilation of the pupil of the eye)

atropine

noun    (Concise Encyclopedia)

Anticholinergic drug. A poisonous, crystalline alkaloid derived from certain nightshade plants, especially Egyptian henbane, atropine is used chiefly to dry up bodily secretions, to dilate the bronchi, to prevent excessive cardiac slowing during anesthesia, and in ophthalmology to dilate the pupil of the eye. It works by suppressing the parasympathetic nervous system. Atropine is also used as an antidote for nerve gas poisoning.

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