In patients with a perceived history of sedation with cetirizine, most were able to tolerate levocetirizine. However, this controlled trial also suggests that many of these patients would tolerate cetirizine if given in a masked manner. Therefore, patients with a history of mild to moderate sedation with cetirizine are unlikely to experience a different sedation profile with levocetirizine.
Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology
Allergy and Asthma Physicians of Central Kentucky, PSC, Lexington, Kentucky, USA. dtzanetos [at] hotmail.com
Ann Allergy Asthma Immunol. 2011 Dec;107(6):517-22
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