COSTUS CPM SUSPENSION with powerful formulation of Levocolperastine Hydrochloride 20 mg + Chlorpheniramine Maleate 4 mg is used for the effective relief of dry, irritating, and allergic cough. It helps suppress persistent coughing, reduces throat irritation, and provides relief from allergy-related symptoms such as sneezing, runny nose, watery eyes, and nasal irritation, ensuring better comfort and restful sleep.