[Possibilities of using cardioselective beta blocking agents in patients with chronic obstructive bronchopneumopathies].

The use of four cardioselective beta-blockers in a group of patients with chronic obstructive bronchopneumopathies was examined. Of the 4 drugs the only possible one for use in this patient category was atenolol which produced significant bronchial dilation after spray treatment, thus demonstrating the responsiveness of beta 2-receptors to pharmacological stimulus.