Typical Dose Of Benadryl For Adults To Counteract Itching?

Posted on Wed, 12 Jun 2013

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Wed, 12 Jun 2013 Answered on

Wed, 3 Jul 2013 Last reviewed on

Question : What is a typical dose of Benadryl for adults to counteract itching?

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

Follow up: Dr. Kerry Pottinger (4 hours later)

Are there other anti-itch medicines I could take that do not make me so sleepy?

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