Levosalbutamol (0.63 mg) is a selective ?2-adrenergic agonist used for the rapid relief of bronchospasm in patients with respiratory conditions such as Asthma and Chronic Obstructive Pulmonary Disease. It works by relaxing bronchial smooth muscles, leading to quick bronchodilation and improved airflow. It is commonly administered via nebulization, especially in pediatric and acute care settings, offering effective symptom relief with better tolerability and fewer cardiac side effects compared to racemic salbutamol.