A 40-year-old member asked:
how much time does it take for benadryl (diphenhydramine) to wear off?
1 doctor answer
A Verified Doctor answered
A US doctor answered Learn more
Benadryl (diphenhydramine): Is usually active in your system for about 4 hours
Answered on May 22, 2014
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Not recommended: that is above the usual dose and will likely produce significant sleepiness. Even one might be a problem with driving. Furthermore, it is very unlikel ... Read More
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Benadryl (diphenhydramine): Unless otherwise advised by your doctor, yes it is.
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A 23-year-old male asked:
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50 mg total: You can take a total of 50 mg up to every 4 hours. I've never heard of extra strength Benadryl (diphenhydramine) (they do make a 50 mg tablet, but i' ... Read More
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