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A drug that blocks the natural action of histamine in an allergy is an:
AAntihistamine
BAntidepressant
CAntioxidant
DAntiseptic
Answer & Solution
Correct answer: A. Antihistamine
1. Allergy symptoms follow the release of histamine.
2. Some drugs interfere with that action.
3. They are antihistamines.
_Source: syllabus Chemistry Part II, Class XII, Chemistry in Everyday Life._
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