Chlorpheniramine Maleate is an antihistamine commonly used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms may include rash, watery eyes, itchy eyes/nose/throat/skin, cough, runny nose, and sneezing. It works by blocking histamine, a natural substance your body makes during an allergic reaction. This medication may also help to dry up watery eyes and runny nose. Typically found in syrup form for children, like in the 50 mL bottle (CP 50ML), it is often used in pediatric care under medical supervision. While effective, it may cause drowsiness and should be used with caution, particularly in young children.