NCIt definition : A short-acting sympathomimetic agent with bronchodilator activity. Fenoterol stimulates
beta-2-adrenergic receptors in the lungs, thereby activating the enzyme adenylate
cyclase that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic-3',5'-adenosine
monophosphate (cAMP). Increased cAMP concentrations relax bronchial smooth muscle,
relieve bronchospasms, and reduce inflammatory cell mediator release, especially from
mast cells.;