1% of ZYRTEC® users in clinical trials discontinued due to somnolence1

The data confirm that ZYRTEC® is generally well tolerated1

  • Discontinuation due to adverse events in clinical trials was not significantly different between ZYRTEC® and placebo (2.9% vs 2.4%, respectively)1

Studies show ZYRTEC® is also generally well tolerated by children.1

ZYRTEC® starts working at hour 1 the first day you take it; Claritin®, at hour 32,3*

Another reason to start with ZYRTEC®.

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*ZYRTEC® 10 mg starts working at hour 1 and Claritin® starts working at hour 3, based on first dose on the first day of a 2-day study in 2 pollen- chamber studies. Primary endpoint measured mean improvement from baseline in Major Symptom Complex (MSC) severity score. MSC symptoms included runny nose, sniffles, itchy nose, nose blows, sneezes, and watery eyes.

References: 1. Data on file. Johnson & Johnson Consumer Inc., McNeil Consumer Health Division. 2. Day JH, Briscoe M, Widlitz MD. Cetirizine, loratadine, or placebo in subjects with seasonal allergic rhinitis: effects after controlled ragweed pollen challenge in an environmental exposure unit. J Allergy Clin Immunol. 1998;101(5):638-645. 3. Day JH, Briscoe M, Rafeiro E, Chapman D, Kramer B. Comparative onset of action and symptom relief with cetirizine, loratadine, or placebo in an environmental exposure unit in subjects with seasonal allergic rhinitis: confirmation of a test system. Ann Allergy Asthma Immunol. 2001;87(6):474-481.