Displaying 14 results of Nimesulide Impurities Nimesulide is a non-steroidal anti-inflammatory drug (NSAID) used to treat pain, inflammation, and fever. However, it may contain impurities that are potentially harmful to human health. Nimesulide impurities can include genotoxic impurities, which can cause mutations in genes, and mutagenic impurities, which can cause cancer. As such, it's important to ensure that nimesulide is manufactured and stored properly to prevent the formation of these impurities.