Hynapsil-DX 15 Syrup is a multi-symptom relief formulation containing Phenylephrine (5mg/5ml), Chlorpheniramine Maleate (2mg/5ml), and Dextromethorphan Hydrobromide (15mg/5ml). This combination is indicated for the symptomatic treatment of upper respiratory tract conditions such as common cold, allergic rhinitis, and cough associated with bronchitis. Phenylephrine acts as a selective alpha-1 adrenergic receptor agonist, providing effective nasal decongestion by vasoconstriction of nasal mucosa blood vessels, thereby reducing swelling and congestion. Chlorpheniramine Maleate is a first-generation antihistamine that alleviates allergic symptoms including sneezing, runny nose, and watery eyes by blocking H1 histamine receptors. Dextromethorphan Hydrobromide serves as a centrally acting antitussive agent, suppressing the cough reflex through its action on the medullary cough center without causing significant sedation. Hynapsil-DX 15 Syrup is suitable for patients requiring relief from nasal congestion, allergic manifestations, and non-productive cough. It should be used with caution in patients with hypertension, glaucoma, or hyperthyroidism. Dosage should be followed as per medical advice, and it is contraindicated in individuals with hypersensitivity to any component. Consultation with a healthcare professional is recommended before use, especially in pediatric and elderly populations.