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A member asked:
My 8 year old, 72 lbs. inadvertently just took a benadryl (diphenhydramine) and zyrtec at the same time, what are the ramifications of the double dose?
A doctor has provided 1 answer
Without knowing : the doses of either, all I can say is that using cetirizine together with diphenhydramine can increase side effects like dizziness, drowsiness, and difficulty concentrating. If you're worried about how woozy he is, call his doctor for instructions about seeking after-hours care.
Answered 4/25/2016
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