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A 22-year-old female asked:

Hi. my allergies are killing me! nose won't stop running and i am quite drowsy... been taking zyrtec (cetirizine) regulary for over a month! is it okay to take every 12 hours?

1 doctor answer • 1 doctor weighed in
Dr. Richard Schneider
Dr. Richard Schneideranswered
Integrative Medicine 47 years experience
Zyrtec (cetirizine): Although on rare occasion Zyrtec (cetirizine) may be taken twice a day, it can cause drowsiness. Check with your PCP for a more effective way to treat your allergies with less side effects.
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A 38-year-old female asked about a male:
My son is 1yr.suffering running nose for over 1mnth!!he takes vit-C and Zyrtec (cetirizine) every 12hrs.no progress.plz help?
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I'm having bad allergies especially a runny nose, i took zyrtec about 5 hours ago and its not helping. Can I take benadryl (diphenhydramine) now?
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Last updated Sep 23, 2019

Found in:

Running›Hypersensitivity›Allergies

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