Guaifenesin amp levomentholaids a productive coughthins and loosens chest mucusreduces chest congestionwhen you39re suffering from a deep chesty cough but still want to get on with your normal daily routine benylin mucus cough works deep down to loosen phlegm clear bronchial congestion and make your cough more productivenon drowsy formulationbenylin is a registered trade markdesign is an applied trade mark