The Cofstop-LS Syrup 100 ml is a member of the group of drugs known as "expectorants," which are primarily used to treat coughs that are mucus-related. The body uses coughing, whether it is productive or dry, to remove irritants from the airways and guard against infection. Dry cough and chesty cough are the two different forms of coughs. A chesty cough (wet cough) generates mucus or sputum while being ticklish and producing no violent or thick mucus.Disclaimer:For more information contact your physician.