A 22-year-old female asked:
I was wondering: if Benadryl (diphenhydramine) only works for 4 hours and it also causes drowsiness, why people use it during the day? That seems dangerous...
1 doctor answer
Dr. Derrick Lonsdale answered
72 years experience in Preventive Medicine
Yes, it is: The trouble is that almost any drug has a variable effects from person to person. Some people can get away with using it for their symptoms without becoming drowsy. If you experience drowsiness from the use of this drug, it should not be taken in daytime
Answered on Dec 4, 2014
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