Short Acting Beta Agonist Use Associated with Increased Mortality and Morbidity in Asthma Patients: A Systematic Review and Meta-Analysis.

Purpose: Short acting b2 agonists are recommended to be used ≤ 2 canisters per year. It is suggested that overuse of b2 agonists will lead to increased morbidity and mortality.  This study aimed to determine if overuse of b2 agonists result in increased morbidity and mortality.