Gliclazide is an oral medication used to treat type 2 diabetes. However, during the manufacturing process, impurities may arise, which are unwanted substances that can affect the safety and efficacy of the drug. These impurities can be organic or inorganic and can cause side effects or reduce the effectiveness of the medication. It is important to monitor and control impurities in the production of gliclazide to ensure the safety and quality of the final product.