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

if i have a true allergic reaction to benadryl (diphenhydramine) will i be allergic to all antihistamines, like zyrtec?

1 doctor answer3 doctors weighed in
Dr. Powlin Manuel
Allergy and Immunology 51 years experience
No: If you are allergic to benedryl you msy not be allergic to other antihistamines.

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Last updated Sep 30, 2019

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