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A 31-year-old member asked:

Does taking zyrtec (cetirizine) d make you drowsy?

1 doctor answer2 doctors weighed in
Dr. Andrew Murphy
Allergy and Immunology 30 years experience
No: Zyrtec (cetirizine) d typically does not make one drowsy, but it can. With the "d" component, which is pseudophed, most patients get hyper b/c this is a stimulant.
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Last updated Apr 4, 2018

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