COSTUS – AM SYRUP with powerful formulation of Ambroxol hydrochloride 15mg + Terbutaline Sulphate 1.25mg + Guaiphenesin 50mg + Menthol 2.5mg is making it effective for the management of productive cough associated with bronchitis, asthma, COPD, and other respiratory tract disorders. Ambroxol acts as a mucolytic to thin and loosen thick mucus, Terbutaline is a bronchodilator that relaxes the airway muscles to improve breathing, Guaiphenesin works as an expectorant to facilitate the removal of mucus from the airways, and Menthol provides a soothing effect on the throat while helping relieve irritation.