A 35-year-old member asked:
Which is the most effective antihistamine: diphenhydramine hcl or loratadine?
1 doctor answer • 3 doctors weighed in
Dr. John Chiuanswered
Allergy and Immunology 59 years experience
Diphendydramine: Diphenhydramine would likely work better but make make you drowsy.
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4.9k viewsReviewed >2 years ago
Last updated Mar 31, 2015
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