XYZAL Allergy 24HR - Allergy sufferers, the difference between Xyzal and Zyrtec is plain to see: On first dose, Xyzal is just as effective as Zyrtec in a pill nearly half the
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Zyrtec (OTC) and Xyzal (Rx) Contain the SAME Active Ingredient? Prilosec (OTC) and Nexium (Rx) Too! | Fauquier ENT Blog
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