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Wingate, NC
A 37-year-old male asked:

if i take zertec for a long period 10mo then switch to claritin (loratadine) can my sinuses become dependent on zyrtec and over produce mucus w/o zyrtec in system?

1 doctor answer4 doctors weighed in
Dr. Michael Zacharisen
Allergy and Immunology 33 years experience
Unlikely: While the "good" effect of zyrtec (cetirizine) will be gone in several days, there is no known problem of "rebound" or worsening symptoms when stopping oral antihistamines. More likely, is the continued exposure to the allergens. Here is where an allergist will be able to assist.

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Last updated Sep 29, 2016
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