NCIt definition : A propylamine derivative with sympathomimetic property. Propylhexedrine binds to and
activates alpha-adrenergic receptors in the mucosa of the respiratory tract, thereby
mimicking the actions of norepinephrine and epinephrine. This results in vasoconstriction
and reduces swelling and inflammation of the mucous membrane lining, therefore relieving
nasal and sinus congestion.;