HH Linctus Cough Syrup is a combination medication formulated to provide effective relief from cough and associated allergic symptoms. It contains Chlorpheniramine Maleate (4mg/5ml), an antihistamine that alleviates allergic reactions such as sneezing, runny nose, and itching by blocking histamine H1 receptors, and Dextromethorphan Hydrobromide (10mg/5ml), a centrally acting antitussive agent that suppresses the cough reflex by acting on the medullary cough center in the brain. This dual-action formulation is particularly beneficial in managing coughs caused by upper respiratory tract infections, allergic rhinitis, or bronchitis. HH Linctus Cough Syrup helps reduce the frequency and severity of dry, non-productive coughs while mitigating allergy-related symptoms, thereby improving patient comfort and sleep quality. It is suitable for use in adults and children above a specified age, with dosing adjusted accordingly. Patients with a history of hypersensitivity to any components, respiratory depression, or certain chronic conditions should consult a healthcare professional before use. HH Linctus Cough Syrup should be used as directed, and prolonged use without medical supervision is not recommended. Common side effects may include drowsiness, dizziness, or gastrointestinal disturbances.