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A member asked:

What is the maximum dosage for chlorphenamine to treat hives? doctors prescribed me with 3x daily. trigger unknown, still waiting to see allergist.

A doctor has provided 1 answer
Dr. John Chiu answered

Probably much higher: The 3rd generation antihistamines can be taken up to 6 times daily without significant adverse reactions. Your doctor is correct in using 3x the dosing although chlorpheniramine, being a 2nd generation AH, at this dose may produce slight drowsiness in some people.

Answered 7/28/2016

1.1k views

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