Beta-blocker use in patients with chronic obstructive pulmonary disease: a systematic review: A systematic review of βB in COPD.

Beta-blockers (βB) are a frequently used class of medications. Although βB have many indications, those related to cardiovascular disease are among the most common and important. However, in patients with chronic obstructive pulmonary disease (COPD), βB are used less often due to concerns about an unfavorable impact on respiratory morbidity and mortality. a need for well-designed randomized controlled trials to examine their safety and efficacy, particularly in patients with comorbid heart disease who otherwise have strong indications for βB.