Bisacodyl is a medication used to treat constipation and bowel irregularities. However, like all pharmaceuticals, it is not 100% pure and may contain impurities. These impurities can be chemical compounds, residual solvents or heavy metals that can negatively impact the safety and efficacy of the drug. Therefore, it is important to monitor and control the levels of these impurities in Bisacodyl formulations to ensure the safety and effectiveness of the medication.