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/ˌæn.tiˈhɪs.tə.miːn/ · noun
(pharmacology) A drug or substance that counteracts the effects of a histamine. Commonly used to alleviate the symptoms of hay fever and other allergies..
Perhaps the most striking method of demonstrating the effect of antihistamine substances is to use them to protect guinea-pigs against the action of histamine sprayed into the air from an atomizer.
Use antihistamine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Antihistamine means (pharmacology) A drug or substance that counteracts the effects of a histamine. Commonly used to alleviate the symptoms of hay fever and other allergies..
Common synonyms include antihistamine, antihistaminic.
The opposite depends on the specific sense.
Perhaps the most striking method of demonstrating the effect of antihistamine substances is to use them to protect guinea-pigs against the action of histamine sprayed into the air from an atomizer.
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