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A member asked:
Can i take zyrtec (cetirizine) in the morning then evening take clarinese for flu?
A doctor has provided 1 answer
YES: Yes, taking 2 antihistamines within a 24 hour period will not cause harm. It might make you more thirsty than usual, so stay hydrated, especially if you have a cold.
Answered 4/24/2018
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