Frion Oral Drops contain Chlorpheniramine Maleate (2mg/ml) and Phenylephrine (5mg/ml), combining an antihistamine with a decongestant to provide effective relief from symptoms associated with allergic reactions, common cold, and nasal congestion. Chlorpheniramine Maleate works by blocking histamine H1 receptors, thereby reducing allergy symptoms such as sneezing, runny nose, itching, and watery eyes. Phenylephrine acts as a selective alpha-1 adrenergic receptor agonist, causing vasoconstriction of nasal blood vessels, which helps to decrease swelling and congestion in the nasal passages, facilitating easier breathing. Frion Oral Drops are typically used to alleviate symptoms of hay fever, allergic rhinitis, sinusitis, and other upper respiratory tract allergies. The oral drop formulation allows for easy administration and rapid absorption, making it suitable for both adults and children as per dosage guidelines. It is important to use this medication under medical supervision, especially in individuals with hypertension, heart disease, glaucoma, or thyroid disorders, as Phenylephrine may raise blood pressure and heart rate. Common side effects may include dizziness, dry mouth, or mild gastrointestinal discomfort. Avoid operating heavy machinery if drowsiness occurs. Always follow the prescribed dosage and consult a healthcare professional if symptoms persist or worsen.