Q. I stopped Zyrtec about five days ago. I started itching all over after day three.
I wish I’d known about the withdrawal symptoms before I started taking Zyrtec four years ago! Can you tell me how long the itching lasts?
A. As far as we can tell there have been no studies of this phenomenon and therefore no definitive answer. Your dermatologist may consider a short course of a corticosteroid if the itching is completely unbearable.
Based on reports from visitors to our website, the itching may begin to fade after two weeks or so. We wish the FDA required drug companies to investigate withdrawal from a range of medications so people would know how to discontinue them safely.