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Typical dose of Benadryl for adults to counteract itching?

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Posted on Wed, 3 Jul 2013
Question: What is a typical dose of Benadryl for adults to counteract itching?
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Answered by Dr. Kerry Pottinger (29 minutes later)
Hi,
Thank you for your question.
The usual dosage of Benadryl for adults is 50mg 4 to 6 hourly. The maximum allowable dose in 24 hours is 300mg. One of the side effects is drowsiness therefore, you need to be careful regarding driving. This assumes an average body weigh.
I hope this information has helped. If you have any further questions please do not hesitate to contact me.
Regards,
Dr K A Pottinger
Above answer was peer-reviewed by : Dr. Raju A.T
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Follow up: Dr. Kerry Pottinger (4 hours later)
Are there other anti-itch medicines I could take that do not make me so sleepy?
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Answered by Dr. Kerry Pottinger (2 hours later)
Hi,

Chorpheniramine (chlorphenamine) is an over the counter drug which has less sedative effects than other anti-itch medicines.
Adult dose is 4mg 4-6hourly or slow-release 8-16mg 8-12 hourly; maximum dose in 24 hours is 32mg. However, you should read the instructions with the tablets before taking them.

Regards,
Dr K A Pottinger
MBChB FRCA
Above answer was peer-reviewed by : Dr. Prasad
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Answered by
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Dr. Kerry Pottinger

Pain Medicine & Palliative Care Specialist

Practicing since :1983

Answered : 1337 Questions

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Typical dose of Benadryl for adults to counteract itching?

Hi,
Thank you for your question.
The usual dosage of Benadryl for adults is 50mg 4 to 6 hourly. The maximum allowable dose in 24 hours is 300mg. One of the side effects is drowsiness therefore, you need to be careful regarding driving. This assumes an average body weigh.
I hope this information has helped. If you have any further questions please do not hesitate to contact me.
Regards,
Dr K A Pottinger