Asthalin contains Salbutamol, a bronchodilator used to treat and prevent asthma, bronchospasm, and chronic obstructive pulmonary disease (COPD). It works by relaxing the airway muscles, making breathing easier. It provides quick relief from wheezing, shortness of breath, and chest tightness caused by lung conditions. This medication is often prescribed as part of a treatment plan for people with mild to moderate asthma or other respiratory disorders.