new once-a-day antihistamine for allergies called Zyrtec (ZIR-tec, cetirizine)
February 1996
Pfizer's coming out with a new once-a-day antihistamine for allergies called Zyrtec (ZIR-tec, cetirizine).
The company will promote it as "low-sedating."
Zyrtec is a metabolite of hydroxyzine (Atarax, etc). It's LESS sedating than hydroxyzine or diphenhydramine...but MORE than Seldane and the other non-sedating antihistamines.
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