Hituss-A Syrup is a combination expectorant and bronchodilator formulation containing Ambroxol (15 mg/5 ml), Guaifenesin (50 mg/5 ml), and Terbutaline (1.25 mg/5 ml). Ambroxol acts as a mucolytic agent, facilitating the breakdown and clearance of viscous mucus from the respiratory tract, thereby improving airway patency. Guaifenesin serves as an expectorant, promoting the hydration of respiratory secretions and enhancing mucociliary clearance. Terbutaline, a selective beta-2 adrenergic receptor agonist, provides bronchodilation by relaxing bronchial smooth muscle, which aids in alleviating bronchospasm and improving airflow in obstructive airway conditions. Hituss-A Syrup is indicated for the symptomatic treatment of productive cough associated with bronchitis, chronic obstructive pulmonary disease (COPD), asthma, and other respiratory tract disorders characterized by excessive or thick mucus production and bronchoconstriction. The combined action of these active ingredients helps to relieve cough, reduce airway obstruction, and facilitate easier expectoration of mucus, thereby improving respiratory function and patient comfort. It is recommended to use this medication under medical supervision, particularly in patients with cardiovascular disorders, hypertension, or hypersensitivity to any component. Dosage adjustments may be necessary based on clinical response and patient tolerance.