Displaying 4 results of Suplatast Impurities Suplatast is a pharmaceutical drug used to treat allergic asthma and other respiratory disorders. Impurities in suplatast refer to any substance that is not the active ingredient but may be present in the drug due to the manufacturing process. Identifying and controlling these impurities is crucial to ensure the safety and efficacy of the drug. Various analytical techniques are used to detect and quantify impurities in suplatast.