Dextromethorphan HCl (15 mg) and Chlorpheniramine Maleate (4 mg) is used to relieve symptoms of cough and allergies. Dextromethorphan HCl is a cough suppressant that works by acting on the brain to reduce the urge to cough, helping to alleviate persistent, dry coughs. Chlorpheniramine Maleate is an antihistamine that helps reduce allergy symptoms such as sneezing, runny nose, and itchy or watery eyes. Together, these ingredients provide effective relief from both cough and allergic reactions, helping to ease discomfort and improve respiratory well-being.