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Meaning of hyoscyamine

hy•os•cy•a•mine

Pronunciation: (hī"u-sī'u-mēn", -min), [key]
— n. Pharm.
  1. a poisonous alkaloid, CHNO, obtained from henbane and other solanaceous plants, used as a sedative, analgesic, mydriatic, and antispasmodic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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