Hyokof FP Syrup is a combination pharmaceutical formulation containing Chlorpheniramine Maleate (1mg/5ml), Paracetamol (125mg/5ml), and Phenylephrine (5mg/5ml), designed for the symptomatic relief of common cold, allergic rhinitis, and related upper respiratory tract conditions. Chlorpheniramine Maleate, an antihistamine, alleviates allergic symptoms such as sneezing, runny nose, and watery eyes by blocking H1 histamine receptors. Paracetamol serves as an analgesic and antipyretic agent, effectively reducing fever and relieving mild to moderate pain associated with cold and flu. Phenylephrine, a selective alpha-1 adrenergic receptor agonist, acts as a nasal decongestant by constricting dilated blood vessels in the nasal mucosa, thereby reducing nasal congestion and improving airflow. The syrup formulation allows for ease of administration, particularly in pediatric and adult patients who have difficulty swallowing tablets. Hyokof FP Syrup should be used according to the prescribed dosage and duration to minimize the risk of adverse effects such as sedation from chlorpheniramine, hepatotoxicity from paracetamol overdose, or hypertension from phenylephrine. It is contraindicated in patients with hypersensitivity to any component, severe hypertension, or concurrent use of monoamine oxidase inhibitors. Consultation with a healthcare professional is recommended before use, especially in individuals with pre-existing medical conditions or those taking other medications.