A 46-year-old member asked:
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Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

1 doctor answer
Dr. Anlin Xu
Dr. Anlin Xu answered
23 years experience in Allergy and Immunology
Yes: Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine). The number of people who feel drowsy on Claritin is so low that it is labeled "non-drowsy". But each of us is unique. I have plenty of patients who feel drowsy on claritin, especially petite women.
Answered on Feb 21, 2019
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2 comments
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7 thanks
Dr. Steven Machtinger
43 years experience in Allergy and Immunology
Allegra (fexofenadine) is the only truly non-sedating antihistamine as it doesn't cross from the bloodstream into the brain.
Apr 4, 2012
Provided original answer
Dr. Anlin Xu
Dr. Anlin Xu commented
23 years experience in Allergy and Immunology
Agree!
Apr 4, 2012

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