A member asked:

Hi, i have allergic rhinitis and asthma, since my allergies are very strong i drink allegra daily can i take benadryl (diphenhydramine) at night?

A doctor has provided 1 answer
Dr. Colette Wiseman answered

Specializes in Internal Medicine

Yes: one dose of benadryl (diphenhydramine) at night (25mg) is safe. However use it only when absolutely necessary. Antihistamine overdose can make you dehydrated, have a fast heart rate and feel anxious.

Answered 8/7/2016

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