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A member asked:

Can benadryl (diphenhydramine) cause panic attacks? took benadryl (diphenhydramine) and an hour later, at dinner, found myself having a massive panic attack. benadryl (diphenhydramine) or coincidence?

A doctor has provided 1 answer
Dr. A. tarig Ahmed answered

Specializes in Internal Medicine

Benadryl (diphenhydramine): It can cause palpitations. Not a common side effect though.

Dr Beck agreed

Answered 4/14/2014

4.2k views

Thank

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I am 19 weeks pregnant and took one benadryl (diphenhydramine) tablet for sinus infection. About 2 hours later I almost had two anxiety attacks along rapid heartbeat?

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Since my friend took Benadryl (diphenhydramine) and Mucinex i just want to make sure she isn't going to have a hear attack or her liver shut down. It wasn't a suicide.

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A member asked:

I'm having a bad anxiety attack and i want more than my usual dose of xanax. Would it be okay to take a Benadryl (diphenhydramine) or two with it?

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A member asked:

Is it ok to alternate zyrtec(prescribed) and Benadryl (diphenhydramine) (otc) for a few days for an allergy attack. Would be z in am and b at pm. 17mth old male

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