Get Virtual Care
For Businesses
About Us
A member asked:
How long before benadryl (diphenhydramine) sleepiness wears off?
A doctor has provided 1 answer
Hangover: So this depends on a lot of things. Typically i tell people between 12-18 hours if they are overall healthy (remember it is a medication that could be dosed every 6 hours!). Realistically may be more like 24+ hours especially if other medications are being used or someone is older.
Answered 10/23/2018
4.9k views
Thank
Related Questions
A member asked:
Can extra strength Benadryl (diphenhydramine) gel cause drowsiness?
A doctor has provided 1 answer
A member 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...
A doctor has provided 1 answer
A member asked:
Benadryl (diphenhydramine) has effect on me -- drowsiness?
A doctor has provided 1 answer
A member asked:
How long does drowsiness generally last after a benadryl (diphenhydramine)?
A doctor has provided 1 answer
People also searched for:
How long will Benadryl (diphenhydramine) make you sleepy for?
My allergies are worse in the spring. Benadryl (diphenhydramine) works better than Rx but makes me sleepy. Is there anything else that could help?
Benadryl (diphenhydramine) allergy make you sleepy?
Does diphenhydramine hydrochloride make you sleepy?
How many minutes does it take for diphenhydramine to kick in? Please answer for these categories: itch, sleepiness, empty stomach, with food
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
