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A 43-year-old member asked:

What will happen if you take three benadryl (diphenhydramine) liqui gels at the same time?

1 doctor answer1 doctor weighed in
Dr. Evans Prieston
Pharmacology 45 years experience
BENADRYL (diphenhydramine): Each capsule contains 25 mg of Diphenhydramine (benadryl (diphenhydramine)). 75 mg of Benadryl (diphenhydramine) exceeds the normal maximum dose of 50 mg. I would not recommend exceeding 50 mg. The risk is extreme dressiness and perhaps difficulty in functioning. If you are taking other medications that may cause dressiness, the effect will be magnified by also taking 75 mg of benadryl (diphenhydramine). Do not exceed 50 mg for any one dose.
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Similar questions

VA
A female asked:

What will happen if I take 4 or 5 Benadryl at the same time?

1 doctor answer1 doctor weighed in
Dr. Yash Khanna
Family Medicine 58 years experience
Benadryl overdose: It will cause extreme drowsiness..confusion,weakness,ringing in the ears,blurred vision,large pupils,dry mouth,flushing,fever ,shaking,insomnia and possible seizures depending on the dosage.
Created for people with ongoing healthcare needs but benefits everyone.
Tallassee, AL
A 39-year-old female asked:

Can I take 4 benadryl (diphenhydramine) at one time?

1 doctor answer2 doctors weighed in
Dr. Matt Wachsman
A Verified Doctoranswered
Internal Medicine 37 years experience
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 unlikely to produce more benefit than the recommended dose (1, at most 2).
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old member asked:

How much time does it take for Benadryl (diphenhydramine) to wear off?

1 doctor answer1 doctor weighed in
Dr. Marino Tavarez
A Verified Doctoranswered
A US doctor answeredLearn more
Benadryl (diphenhydramine): Is usually active in your system for about 4 hours
Created for people with ongoing healthcare needs but benefits everyone.

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Last updated Jan 25, 2021

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