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A 23-year-old male asked:

Is it safe to take another 24-hour zyrtec (cetirizine) antihistamine if there's still about 8 hours left before the previous one wears off?

2 doctor answers • 2 doctors weighed in
Dr. Oscar Novick
Dr. Oscar Novickanswered
Pediatrics 59 years experience
Zyrtec (cetirizine): You can take another xyrtec but you may become very sleepy.
4.4k viewsAnswered >2 years ago
Thank
Dr. William Culviner
Dr. William Culvineranswered
ENT and Head and Neck Surgery 31 years experience
Follow dosing: It's best to adhere to the dosing recommended. It would be hard to overdo it with the zyrtec (cetirizine) , the way you are suggesting, but it begs the question- how well does the rx work , if you want more before the proper dosing interval ? I would think you need to talk with your doctor about other options to achieve safe allergy control. Sometimes more than one rx is necessary.
4.4k viewsAnswered >2 years ago
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Last updated Feb 23, 2014

Found in:

Antihistamine

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