Hayrest Syrup is a multi-symptom relief formulation containing Chlorpheniramine Maleate (1mg/5ml), Phenylephrine (5mg/5ml), Paracetamol (125mg/5ml), and Sodium Citrate (60mg/5ml). Chlorpheniramine Maleate, an antihistamine, alleviates allergic symptoms such as sneezing, runny nose, and watery eyes by blocking H1 histamine receptors. Phenylephrine, a decongestant, reduces nasal congestion through vasoconstriction of blood vessels in the nasal mucosa. Paracetamol provides effective analgesic and antipyretic effects, helping to relieve pain and reduce fever commonly associated with upper respiratory tract infections. Sodium Citrate acts as an expectorant and mucolytic agent, facilitating the loosening and thinning of mucus to ease productive cough and improve respiratory comfort. Hayrest Syrup is indicated for symptomatic management of common cold, allergic rhinitis, sinusitis, and related respiratory conditions. It should be used as directed by a healthcare professional, with caution in patients with hypertension, cardiovascular disorders, or hepatic impairment. Adverse effects may include drowsiness, dry mouth, or gastrointestinal discomfort. Contraindications include hypersensitivity to any component and concurrent use with monoamine oxidase inhibitors. Dosage adjustments may be necessary in special populations. Always consult a physician before use to ensure safety and efficacy.