Displaying 14 results of Siponimod Impurities Siponimod is a drug that is used to treat multiple sclerosis. However, during the manufacturing process, impurities can be introduced into the drug. These impurities can affect the efficacy and safety of the drug. Therefore, it is important to identify, analyze, and control these impurities to ensure that the final product is safe and effective for patient use. The identification and control of siponimod impurities is an important aspect of the drug development process.