Displaying 10 results of Sulfasalazine Impurities Sulfasalazine is a drug used to treat inflammatory bowel disease and rheumatoid arthritis. However, during the manufacturing process of this drug, impurities may be introduced. These impurities can potentially affect the efficacy and safety of the drug. Therefore, it is important to monitor and control the levels of sulfasalazine impurities in the final product to ensure its quality and safety for use by patients.