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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Dr. Michael Fisher

Dr. Darrell Herrington

Dr. Michael Fisher and another doctor agree2 doctors agree

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Last updated Mar 31, 2015

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