Lubiprostone is a medication used to treat certain gastrointestinal disorders. However, during the manufacturing process of Lubiprostone, some impurities may form. These impurities can affect the purity and quality of the final product, and may also pose potential health risks to patients who consume the medication. Therefore, it is crucial to monitor and control the levels of Lubiprostone impurities to ensure the safety and efficacy of the medication.