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What are the side effects of Diphenhydramine?

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Posted on Sat, 16 May 2015
Question: took both benadryl and zzzquil not knowing its the same thing, i took a total of 200mg of DIPHENHYDRAMINE just wondering if i should be concerned
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Answered by Dr. Nidhi Setia (49 minutes later)
Brief Answer:
do not worry with 200mg.

Detailed Answer:
Hello
Welcome to HCM.

Maximum dose of Diphenhydramine is 400mg in a day.

I think you should not worry with the 200mg dose.

But please avoid driving and heavy work in which there are chances of hurting yourself as the drug can cause heavy sedation.

Hope this helps.

Thanks.
Above answer was peer-reviewed by : Dr. Shanthi.E
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Answered by
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Dr. Nidhi Setia

OBGYN

Practicing since :2009

Answered : 760 Questions

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What are the side effects of Diphenhydramine?

Brief Answer: do not worry with 200mg. Detailed Answer: Hello Welcome to HCM. Maximum dose of Diphenhydramine is 400mg in a day. I think you should not worry with the 200mg dose. But please avoid driving and heavy work in which there are chances of hurting yourself as the drug can cause heavy sedation. Hope this helps. Thanks.