The Annals of pharmacotherapy
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Randomized Controlled Trial Multicenter Study Clinical Trial
Cetirizine versus hydroxyzine and placebo in chronic idiopathic urticaria.
To compare the safety and efficacy of cetirizine with that of hydroxyzine and placebo in the treatment of chronic idiopathic urticaria. ⋯ Cetirizine 10 mg once daily was equivalent to hydroxyzine 25 mg tid in controlling the symptoms of patients with chronic urticaria, as assessed by patient and investigator evaluations.