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A member asked:

Which occurs if you take an allergy pill when it wasn't needed?

A doctor has provided 1 answer
Dr. Michael Zacharisen answered

Specializes in Allergy and Immunology

Usually nothing: Most allergy pills are antihistamines. Antihistamines are typically a safe class of medications when used in usual doses. The most common side effect could be drowsiness especially if the antihistamine is Benadryl (diphenhydramine) or one of the other older antihistamines.

Answered 6/24/2014

4.7k views

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