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Xyzal Claim To Match Zyrtec Efficacy At Half Dosage Dissolves In NAD Review

This article was originally published in The Pink Sheet

Executive Summary

Claims that Sanofi's Xyzal 24 HR OTC product contains the same effectiveness as competitor Zyrtec but with half the medication fail a US

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Sanofi Clarifies Xyzal-Zyrtec Size Comparison, Outweighs J&J Calculation

National Advertising Division recommends Sanofi add "nearly" to claim that Xyzal Allergy 24HR is "as effective at half the size" of J&J's Zyrtec in a TV ad because 3D modeling comparing the products showed Xyzal tablet has 73-mm volume and a Zyrtec tablet's is 145.2 mm. Sanofi's evidence also supported referring to Xyzal's size would not mislead consumers to expect its drug has half the pharmaceutical dosage of Zyrtec.

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