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Meaning of antihistamine

an•ti•his•ta•mine

Pronunciation: (an"ti-his'tu-mēn", -min), [key]
— n. Biochem., Pharm.
  1. any of certain compounds or medicines that neutralize or inhibit the effect of histamine in the body, used chiefly in the treatment of allergic disorders and colds.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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