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 stop taking oral allergy medicines like Zyrtec or Xyzal.

The FDA reported that the cause of the itching is currently unknown, although there are indications of a “causal relationship ...

Zyrtec is an effective allergy medication, but there are some Zyrtec side effects to know about, like dry mouth and sleepiness. Allergists explain what to do.

Zyrtec is an effective allergy medication, but there are some Zyrtec side effects to know about, like dry mouth and sleepiness. Allergists explain what to do.

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

The US Food and Drug Administration (FDA) is warning that patients who stop taking cetirizine (Zyrtec) or levocetirizine (Xyzal) after long-term use may experience rare but severe itching.

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

(NEXSTAR) – 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 ...

Some patients may suffer from unbearable itching across their entire body after stopping common allergy medications, health officials said. People who quit Zyrtec or Xyzal after using them daily for ...