If you've been taking Zyrtec or Xyzal for your worsening allergy symptoms, there's a new side effect you should know about.

Although the side effect is rare, the FDA said some patients experienced severe itching that required medical attention.

The U.S. Food and Drug Administration has issued a warning about a rare but severe reaction that can happen to people who ...

Two antihistamines, including Zyrtec, are under warning by the FDA after people reported “severe itching” after ceasing ...

FDA warns of severe itching risk when stopping long-term use of allergy medications cetirizine and levocetirizine, affecting ...

“Reported cases were rare but sometimes serious, with patients experiencing widespread, severe itching that required medical ...

The FDA warns that longtime users of popular allergy medications may experience "severe itching" after stopping use.

The agency will require manufacturers to add a warning to prescription and OTC labeling about the risk of itching and the ...

WASHINGTON - The FDA has issued a warning about a rare but severe itching side effect linked to popular allergy medications.

People who regularly use the allergy medications Zyrtec or Xyzal may experience severe itching when they stop, the U.S. Food ...