Nighttime Cough & Bronchial Syrup is a homeopathic nighttime formula recommended to relieve coughs due to minor throat and bronchial irritation from cold or pollution as it loosens phlegm and thins bronchial secretions while encouraging a restful nights sleep. Relieves coughs, congestion, sleeplessness. Natural Homeopathic. Dont let a cough keep you awake! B&T Nighttime Cough & Bronchial Syrup combines an all-natural, non-narcotic sleep aid with Americas favorite homeopathic cough medicine.