Xtos-L Syrup Sugar Free is a combination pharmaceutical formulation containing Levosalbutamol (1 mg/5 ml), Ambroxol (30 mg/5 ml), and Guaifenesin (50 mg/5 ml), designed for the symptomatic management of respiratory conditions characterized by bronchospasm, mucus hypersecretion, and productive cough. Levosalbutamol, a selective β2-adrenergic receptor agonist, acts as a bronchodilator by relaxing the smooth muscles of the airways, thereby facilitating easier breathing in conditions such as asthma and chronic obstructive pulmonary disease (COPD). Ambroxol serves as a mucolytic agent, promoting the clearance of mucus by breaking down its structure and enhancing mucociliary transport. Guaifenesin functions as an expectorant, increasing the hydration of respiratory tract secretions, which aids in loosening and thinning mucus, making it easier to expectorate. The sugar-free formulation is particularly suitable for patients requiring glycemic control, including diabetics. Xtos-L Syrup is indicated for use in adults and pediatric patients for the relief of cough and congestion associated with bronchitis, asthma, and other obstructive airway diseases. Administration should follow prescribed dosages, and caution is advised in patients with hypersensitivity to any component, cardiovascular disorders, or hyperthyroidism. This combination therapy offers a comprehensive approach to managing respiratory symptoms by targeting bronchoconstriction, mucus viscosity, and secretion clearance.