Histan Antihistamine Syrup is a 100ml medication used to treat allergic symptoms. It contains chlorpheniramine maleate as the active ingredient and provides relief from common allergy symptoms like sneezing, runny nose, itching, and watery eyes. This syrup formulation is suitable for patients who have difficulty swallowing tablets. The liquid form allows for easy dose adjustment based on age and severity of symptoms. Store at room temperature away from direct sunlight and heat. Keep out of reach of children. Use only as directed by your healthcare provider. The product should not be used after the expiry date printed on the package.