The objective of this study was to evaluate the cost effectiveness of levocetirizine, a first-line treatment for urticaria. Methods: Data were collected from two placebo-controlled trials and from ...

Some ingredients that doctors recommend looking for in antihistamines include cetirizine (Zyrtec), fexofenadine (Allegra), loratadine (Claritin), and levocetirizine dihydrochloride (Xyzal), Dr ...