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Medical Dictionary

1

antihistamine

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adjective an·ti·his·ta·mine \ˌant-i-ˈhis-tə-ˌmēn, ˌan-ˌtī-, -mən\

Medical Definition of antihistamine

  1. :  tending to block or counteract the physiological action of histamine <human blood lacks antihistamine activity>




2

antihistamine

noun an·ti·his·ta·mine

Medical Definition of antihistamine

  1. :  any of various compounds that oppose the actions of histamine and are used especially for treating allergic reactions (as hay fever), cold symptoms, and motion sickness





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