Salbair Neb Transpules 0.63 mg is used to treat bronchospasm and symptoms of asthma and chronic obstructive pulmonary disease (COPD). Salbair Neb Transpules 0.63 mg helps to relieve symptoms like coughing, wheezing and shortness of breath. Bronchospasm is the tightening of the muscles that line the airways or bronchi in the lungs. Asthma is a breathing problem in which airways narrow, swell and produce extra mucus, leading to difficulty breathing. COPD is a group of lung diseases with emphysema (shortness of breath) and chronic bronchitis (inflammation of the lining of the bronchial tubes).