Bambuterol is called a bronchodilator because it widens (dilates) your airways. It works by opening up the air passages in your lungs so that air can flow into your lungs more freely. For people with asthma this helps to relieve symptoms such as coughing, wheezing and feeling breathless, particularly at night.
This is a companion discussion topic for the original article at https://patient.info/medicine/bambuterol-tablets-bambec