Ambroxol
■ Possesses mucokinetic and secretolytic properties
■ Promotes the removal of tenacious secretions in the respiratory tract
Terbutaline
■ Selective beta 2-adrenergic agonist, predominantly stimulates beta-2 receptors, thus producing relaxation of bronchial smooth muscle
Guaiphenesin
■ Increases respiratory tract fluid and reduces the viscosity of tenacious secretions and acts as an expectorant