isoproterenol HCl/isoproterenol sulfate

isoproterenol HCl/isoproterenol sulfate (ī´sōprəter´ənol sul´fāt),

n brand names: Isuprel, Vapo-Iso, Aerolone;
drug class: adrenergic β1- and β2-agonist;
action: relaxes bronchial smooth muscle and dilates trachea and main bronchi by increasing levels of cAMP, which relaxes smooth muscles; causes increased contractility and heart rate;
uses: bronchospasm, asthma, heart block, bradycardia, or shock.