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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Taking Benadryl For Sleeping Daily Cause Any Damage To Body?

Hi, I have a strange addiction to Benadryl for sleeping. The addiction part is that I take about 400mg of Benadryl (Diphenhydramine). I've been doing this for about 2 months now. How bad is this for my body, specifically which organs is it going to harm? Is this high dosage causing permanent damage to my body or organs? Thank you.
Fri, 8 Aug 2014
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General & Family Physician,  's  Response
Hello
Diphenhydramine ( benadryl) is mainly used in allergic conditions and also for motion sickness.
Dosage are 25-30 mg 3-4 times daily :MAXIMUM dose 300 mg / day.
So you are taking 400 mg i.e upper limit you crossed already , this is harmful for you.
Now side effects of benadryl :
C N C ( CENTRAL NERVOUS SYSTEM or brain ) depression.
Thickened respiratory secretions.
These two are most affected systems in body .
others are:
Headache, dizziness, G I disturbance, blood dyscrasias, blurring of vision.
In my opinion this is a case of ADDICTION and stop it by gradually decreasing the dosage.
Good luck.
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Does Taking Benadryl For Sleeping Daily Cause Any Damage To Body?

Hello Diphenhydramine ( benadryl) is mainly used in allergic conditions and also for motion sickness. Dosage are 25-30 mg 3-4 times daily :MAXIMUM dose 300 mg / day. So you are taking 400 mg i.e upper limit you crossed already , this is harmful for you. Now side effects of benadryl : C N C ( CENTRAL NERVOUS SYSTEM or brain ) depression. Thickened respiratory secretions. These two are most affected systems in body . others are: Headache, dizziness, G I disturbance, blood dyscrasias, blurring of vision. In my opinion this is a case of ADDICTION and stop it by gradually decreasing the dosage. Good luck.