Zedex-SF Dry Cough Syrup Sugar Free is a clinically formulated antitussive medication containing Chlorpheniramine Maleate (2mg/5ml) and Dextromethorphan Hydrobromide (10mg/5ml). This combination is specifically designed to provide effective relief from dry, non-productive cough associated with upper respiratory tract infections, allergies, or irritants. Chlorpheniramine Maleate, an antihistamine, works by blocking histamine H1 receptors, thereby reducing allergic responses such as nasal congestion and throat irritation that often trigger coughing. Dextromethorphan Hydrobromide acts centrally on the cough center in the medulla oblongata to suppress the cough reflex without causing sedation or respiratory depression, making it suitable for daytime use. The sugar-free formulation is ideal for patients with diabetes or those seeking to avoid sugar intake. Zedex-SF is generally well-tolerated; however, it should be used with caution in patients with a history of hypersensitivity to its components, glaucoma, or respiratory conditions such as asthma. It is contraindicated in children under two years of age and should be used under medical supervision during pregnancy and lactation. This syrup provides symptomatic relief, improving patient comfort and quality of life during episodes of dry cough.