A 42-year-old member asked:

Is zyrtec and levocetirizine the same medications?

1 doctor answer • 1 doctor weighed in

Dr. John Chiuanswered

Allergy and Immunology 59 years experience

Levo is more pure: Zyrtec contains both levocetirizine and an inactive mirror-image counterpart. Thus mg for mg , levocetirizine is more potent.

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4.9k viewsAnswered >2 years ago

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Last updated Mar 16, 2021

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