A 46-year-old female asked:
I've read that benadryl (diphenhydramine) can both raise and lower blood pressure - which is correct? i take 50mg at night to help fall asleep.
2 doctor answers • 3 doctors weighed in
Cardiology 45 years experience
Neither: Benadryl (diphenhydramine) has no direct effect on BP and is one of the safest medicines available and fine to use as you're using it for sleep. It's given to the very elderly and the very young safely. Remember that you can purchase it inexpensively as the generic: Diphenhydramine which works just fine also.
5.1k viewsReviewed >2 years ago
Dentistry - Cosmetic 34 years experience
5.1k viewsAnswered >2 years ago
Last updated Jan 10, 2019
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