Alverine is a medication used to treat irritable bowel syndrome and other gastrointestinal disorders. However, during the manufacturing process, impurities may be introduced into the medication. These impurities can affect the safety and efficacy of the medication, and therefore must be carefully monitored and controlled. Analytical techniques, such as high-performance liquid chromatography (HPLC), are used to identify and quantify these impurities to ensure the quality of the medication.