Zonatus-AT Expectorant Sugar Free is a multi-ingredient oral solution formulated to provide effective relief from respiratory conditions characterized by productive cough and bronchial congestion. Each 5 ml dose contains Ambroxol 15 mg, a mucolytic agent that facilitates the breakdown and clearance of mucus secretions, enhancing expectoration. Guaifenesin 50 mg acts as an expectorant, promoting the thinning and loosening of mucus in the airways, thereby improving cough productivity. Menthol 2.5 mg provides a mild local anesthetic effect and a soothing sensation in the throat, aiding symptomatic relief of irritation and cough reflex sensitivity. Terbutaline 1.25 mg, a selective beta-2 adrenergic receptor agonist, contributes bronchodilation, reducing bronchospasm and improving airflow in obstructive airway conditions. Zonatus-AT is sugar-free, making it suitable for patients requiring sugar-restricted formulations, including diabetics. This combination therapy is indicated for the symptomatic treatment of acute and chronic bronchitis, bronchial asthma, and other respiratory tract disorders involving excessive mucus production and airway constriction. The formulation should be used under medical supervision, with dosing adjusted according to patient age and clinical response. Contraindications include hypersensitivity to any component and caution is advised in patients with cardiovascular disorders.