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Stop Using, Start Itching: FDA Flags Risk Tied to Popular Allergy Med Zyrtec

Gizmodo
Summary
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71% Informative

The FDA is warning that stopping long-term use of cetirizine and levocetirzine can, in rare cases, cause intense itchiness.

The FDA has received hundreds of reports of people experiencing severe itching after going off the medications.

The silver lining is that this side effect seems to be rare overall.