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A member asked:

How many 25mg benadryl (diphenhydramine) are safe to take for an allergic reaction?

A doctor has provided 1 answer
Dr. Shah Chowdhury answered

Specializes in Pediatrics

Just Answered: You can take 2 x 25 mg tab. Every 4 hours/day with max. Dose of 400 mg (adult dose). Don't drive because drowsiness is one of the side effects. Others are: tachycardia, dry mouth, hypotension, paradoxical excitement, etc.

Answered 6/22/2015

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