Ontus Syrup is a multi-ingredient expectorant and bronchodilator formulation designed to provide symptomatic relief in respiratory conditions characterized by productive cough and bronchospasm. Each 5 ml of Ontus Syrup contains Ambroxol 15 mg, a mucolytic agent that facilitates the breakdown and clearance of mucus from the respiratory tract, thereby improving airway patency. Guaifenesin 50 mg acts as an expectorant, promoting the expulsion of mucus by increasing bronchial secretions and reducing viscosity. Menthol 1 mg provides a soothing effect on the throat and nasal passages, contributing to symptomatic relief from irritation and cough reflex. Terbutaline 1.25 mg, a selective beta-2 adrenergic receptor agonist, exerts bronchodilatory effects by relaxing bronchial smooth muscle, thus easing airflow obstruction commonly seen in conditions such as asthma and chronic bronchitis. Ontus Syrup is indicated for the management of acute and chronic respiratory disorders involving mucus retention and bronchoconstriction. It should be used under medical supervision, with attention to contraindications such as hypersensitivity to any component, cardiovascular disorders, and hyperthyroidism. Dosage adjustments may be necessary based on patient response and clinical condition. Adverse effects are generally mild but may include gastrointestinal discomfort, tremors, or palpitations.