Abruptly stopping these antihistamines after long-term use without tapering can lead to severe itching, the FDA said.

If you've been using Zyrtec or Xyzal to combat your allergy symptoms this year, an FDA warning wants you to be aware of this ...

The US Food and Drug Administration (FDA) has issued a warning regarding a rare but troubling side effect experienced by some ...

Hundreds of people who stopped using allergy medications like Zyrtec and Xyzal noticed an uncomfortable new side effect, the U.S. Food and Drug Administration said in a warning issued this month.