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A male asked:

Can i take zyrtec (cetirizine) in the morning then evening take clarinese for flu?

1 doctor answer2 doctors weighed in
Dr. Kristin Sokol
Allergy and Immunology 13 years experience
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.

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Last updated Apr 24, 2018
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