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Menlo Park, CA
A 25-year-old male asked:

What are some anti-histamine medications that do not cause drowsiness? having a bad experience with zyrtec (cetirizine).

1 doctor answer3 doctors weighed in
Dr. Michael Zacharisen
Allergy and Immunology 34 years experience
Fexofenadine: Fexofenadine sold as Allegra (fexofenadine) does not cause drowsiness as it does not cross the blood-brain barrier.
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Last updated Nov 14, 2020

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