1 doctor weighed in:

How effective is the allergy medicine called xyzal (levocetirizine)?

1 doctor weighed in
Dr. Jack Mutnick
Internal Medicine - Allergy & Immunology

In brief: Xyzal (levocetirizine)

It is an isomer of zyrtec (cetirizine).
It is about equally effective to zyrtec (cetirizine) but might cause slightly less drowsiness. Both work pretty much the same. I say....Buy whichever is cheaper.

In brief: Xyzal (levocetirizine)

It is an isomer of zyrtec (cetirizine).
It is about equally effective to zyrtec (cetirizine) but might cause slightly less drowsiness. Both work pretty much the same. I say....Buy whichever is cheaper.
Dr. Jack Mutnick
Dr. Jack Mutnick
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