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Rockville, MD
A 40-year-old female asked:

Is it possible to be allergic to more than one antihistamine? not the fillers in the pills but the medicene itself. hives from benadryl (diphenhydramine) and xyzal?

1 doctor answer1 doctor weighed in
Dr. Kaleyathodi Bhat
Allergy and Immunology 52 years experience
Anthitamin allerg: Benardryl and xyzal (levocetirizine) are different molecules, allergy to one does not cross react with the other.

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Last updated Dec 9, 2013

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