Zedex Plus Cough Syrup Sugar Free is a multi-symptom relief formulation containing Phenylephrine (5mg/5ml), Chlorpheniramine Maleate (2mg/5ml), and Dextromethorphan Hydrobromide (10mg/5ml). This combination is indicated for the symptomatic treatment of cough associated with upper respiratory tract infections, nasal congestion, and allergic conditions. Phenylephrine acts as a selective alpha-1 adrenergic receptor agonist, providing effective nasal decongestion by vasoconstriction of the nasal mucosa. Chlorpheniramine Maleate, a first-generation antihistamine, alleviates allergic symptoms such as sneezing, runny nose, and watery eyes by blocking H1 histamine receptors. Dextromethorphan Hydrobromide serves as a centrally acting antitussive, suppressing the cough reflex through its action on the medullary cough center. The sugar-free formulation makes it suitable for diabetic patients and those requiring calorie-restricted diets. Zedex Plus Cough Syrup Sugar Free is generally well tolerated when used as directed; however, caution is advised in patients with hypertension, glaucoma, or those taking monoamine oxidase inhibitors. It is recommended to follow the prescribed dosage and consult a healthcare professional if symptoms persist beyond seven days or worsen. This product offers comprehensive relief from cough and associated nasal and allergic symptoms, enhancing patient comfort and recovery.