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Chest, Vol 79, 540-544, Copyright © 1981 by American College of Chest Physicians

ARTICLES

Adverse effect of propranolol on airway function in nonasthmatic chronic obstructive lung disease

EH Chester, HJ Schwartz and GM Fleming

Bronchomotor tone is, in part, under beta-adrenergic control, and beta- adrenergic agonists are commonly used in the therapy for chronic obstructive pulmonary disease (COPD). Beta-adrenergic blockade with propranolol is contraindicated in asthmatic patients, yet little is known of its effect in patients with COPD. We studied 13 patients with COPD in a random-entry, double-blind crossover comparison of oral propranolol, 40 mg, and oral placebo on separate day. Pulmonary function worsened after administration of propranolol. Significant differences were present between the drugs' effect on heart rate, airway resistance, specific resistance, and flow rates at one hour, and persisting through four hours (p less than 0.01). Propranolol may have a deleterious effect on pulmonary function in nonasthmatic COPD. We conclude that when propranolol is to be used in patients with COPD, the short- and long-term effects on airway should be measured sequentially.




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Copyright © 1981 by the American College of Chest Physicians.