Benadryl and ZzzQuil both contain diphenhydramine.
Answered By: Dr. Brian Staiger Pharm.D
Nov 18, 2018
Cam asked
I am looking for a sleep product, but looking at the labels, they all look like they contain the same ingredient. Does ZzzQuil contain the same stuff as Benadryl?
At a glance
Benadryl and ZzzQuil contain the same active ingredient, diphenhydramine. Liquid ZzzQuil contains alcohol.
Diphenhydramine is a sedating antihistamine used for allergies and is a common ingredient in over the counter sleep aids.
Dr. Brian Staiger is a licensed pharmacist in New York State and the founder of the Q+A website PharmacistAnswers.com. He graduated from the University At Buffalo with a Doctor of Pharmacy degree in 2010.
He has been featured in numerous publications including the Huffington Post as well as a variety of health and pharmacy-related blogs.
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