Duolin Respules 1.25mg/500mcg is utilized for the treatment of ongoing obstructive pulmonary disorder(a lung issue in which the progression of air to the lungs is hindered). It helps in loosening up the muscles of the air entries and making it simpler to relax. It alleviates hacking, wheezing and feeling winded. Duolin Respules 1.25mg/500mcg is a mix of two prescriptions: Levosalbutamol and Ipratropium. Levosalbutamol is a bronchodilator while Ipratropium is an anticholinergic. They work by loosening up the muscles in the airway and enlarge the airways. Together, they make breathing simpler.