potassium guaiacolsulfonate and its Impurities

An expectorant drug which works by thinning mucus (phlegm) in the lungs, making it less sticky and easier to cough up. Used in treating respiratory infections, asthma, colds, or hay fever. Reference standards of Potassium Guaiacolsulfonate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.