Used primarily as a long-acting beta-2 adrenergic agonist, it helps manage chronic obstructive pulmonary disease (COPD) by relaxing the muscles in the airways, making breathing easier. It is often prescribed for maintenance treatment to prevent symptoms like wheezing and shortness of breath. Administered via inhalation, it provides sustained relief over 24 hours, reducing the frequency of flare-ups. It is not intended for immediate relief of acute bronchospasm. Patients should follow proper inhalation techniques to ensure effective delivery of the medication. Regular use can improve lung function and overall quality of life for individuals with COPD.