Cofstop-CDX Syrup 100 ml is a member of the group of drugs known as "cough and cold preparations," which are generally used to treat dry cough. Dry or productive coughing is the body's method of removing irritants from the airways and guarding against infection, such as allergies, mucus, or smoke. Coughs come in two different varieties. Chesty and dry coughing. A chesty cough (wet cough) is characterised by the production of mucous or phlegm to aid in clearing your airways, whereas a dry cough is ticklish and does not create any nasty or thick mucus.Disclaimer:For more information contact your physician.