Ovirest SG Soft Gelatin Capsule is a combination pharmaceutical formulation containing Phenylephrine (5 mg), Chlorpheniramine Maleate (2 mg), and Dextromethorphan Hydrobromide (10 mg), designed for the symptomatic relief of common cold 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 competitively inhibiting histamine H1 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. This combination is indicated for the relief of nasal congestion, allergic rhinitis, and dry cough associated with upper respiratory tract infections. Ovirest SG should be used with caution in patients with hypertension, glaucoma, or hyperthyroidism, and is contraindicated in individuals with hypersensitivity to any component. Dosage should be adhered to as prescribed by a healthcare professional to minimize adverse effects such as drowsiness, dizziness, or gastrointestinal disturbances. This product is intended for short-term use and should not replace specific treatments for underlying conditions.