Zyrtec (cetirizine) and Nyquil: It depends on what Nyquil you have as there is one on the market with an antihistamine in it, which is what Zyrtec (cetirizine) is. You would not want to take two antihistamines in one day without talking to your physician or the pharmacist.
Answered 3/10/2021
4k views
Frank770: Yes you can provided you give the Nyquil 12 hours later and just double check the ingredients in Nyqil.
Answered 5/23/2018
4k views
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