Efficacy and safety of Montelukast–Levocetirizine Combination Therapy in Combined Allergic Rhinitis and Asthma Syndrome: A Systematic Review and Meta-Analysis

Objective This meta-analysis aims to evaluate the efficacy and safety of montelukast combined with levocetirizine in the treatment of allergic rhinitis with asthma, and to provide objective and effective evidence-based medical evidence for clinical use.