NCIt definition : Fenoterol BromideThe hydrobromide salt of fenoterol, 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.;