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A member asked:

I have itchy hives and swollen lips/glands. how many benadryl can i safely take? i just took 3 25mg pills.

A doctor has provided 1 answer
Dr. Al Hegab answered

Specializes in Allergy and Immunology

300 mg/day: total dose of benadryl (diphenhydramine) from all sources. 75 mg every 6 hours is the maximum that you can take, preferably not to exceed 50 mg / dose. See your doctor if no improvement or getting worse, good luck

Answered 2/13/2017

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