This registry is a place to share positive or negative side effects of using Zyrtec. If you directly experienced a side effect while using Zyrtec, then we encourage you to enter it here. Please note that entries here are the experiences of individual users, and in no way means that you or anyone else will experience the same side effect, since the same medication affects people in different ways. Please always contact your physician.
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September 13th
2008
5:44 PM
I have been on Zyrtec for at least 4 yrs and I have to stop to have some allergy test done again.I am 53 yrs old and asthmatic. I have to be off them for 7 days prior to the tests. I can't believe the withdrawal I am getting. I am itching all over and feel as though I am crawling out of my skin. I will take the shots for my allergies and never go back to Zyrtec again. Works great for allergies but don't try to get off them.
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