Question: is xyzal related to zyrtec?
Answer: The difference between Xyzal and Zyrtec Xyzal is produced by Sanofi, and Zyrtec is produced by a division of Johnson & Johnson. They're both marketed as providing relief from the symptoms of allergies. Sanofi promotes Xyzal as a mirror image of Zyrtec, without the part of the drug that causes drowsiness.