The FDA Warns of New Zyrtec and Xyzal Side Effect. Here’s What We Know About Treating It

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

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