A member asked:

Is it bad if i take benadryl, (diphenhydramine) claritin, amd allegra-d all in one day?

A doctor has provided 1 answer

Similar medicines: All of these medicines are antihistamines. Taking combinations of antihistamines increases the possibility of side effects. If antihistamines are not working at recommended doses see a doctor. You may need a different type of treatment for your problem.

Answered 10/27/2013

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