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Houston, TX
A 57-year-old male asked:

Is antihistamine harmful to the body?

2 doctor answers4 doctors weighed in
Dr. Michael Zacharisen
Allergy and Immunology 34 years experience
No: Antihistamines are a class of medication used since the 1940s. They are used to treat allergic conditions and are very safe. The newer generation antihistamines have even less side effects compared to first generation or old antihistamines.
A Verified Doctoranswered
A US doctor answeredLearn more
May cause drowsiness: Many older over-the-counter antihistamines may cause drowsiness. Newer, non-sedating second- and third-generation antihistamines are available over-the-counter or by prescription.
Last updated Oct 11, 2016
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