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A member asked:

Do any other antihistamines of as strong or stronger antienetic power as phenergan (promethazine)? or are all their antienetic properties just dose dependent?

A doctor has provided 1 answer
Dr. John Chiu answered

Most of them don't: The non-sedating type of antihistamine has no anti-emetic property. The older kind such as Benadryl (diphenhydramine) , minimal or no effect on emesis..

Dr Baez agreed

Answered 6/24/2014

4.9k views

Thank

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