Benadryl (diphenhydramine): Most people it will last 8 hours or so but I have seen people who still feel groggy 12 hours later or more
Answered 4/28/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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