A randomized, double‐blind, crossover comparison among cetirizine, levocetirizine, and ucb 28557 on histamine‐induced cutaneous responses in healthy adult volunteers

Abstract
Background: Cetirizine is a highly efficacious and long‐acting second‐generation H1‐receptor antagonist for the treatment of allergic diseases, such as allergic rhinitis and chronic idiopathic urtic...