Isoproterenol aerosols.

Notable acute improvement in pulmonary function in the majority of 32 patients with known bronchial asthma followed two inhalations of Isoproterenol. No deleterious clinical or cardiovascular effects of EKG changes (after one-half hour) were observed. A slight drop in blood pressure was noted in previously hypertensive patients. Isoproterenol's short duration of effects is ideal and one or two inhalations spaced four hours apart may be safely recommended for the relief of the acute asthma paroxysm.