Domperidone is a medication used for the treatment of nausea and vomiting. However, the drug may contain impurities that can be harmful to the human body. These impurities may include residual solvents, heavy metals, and other potentially toxic substances. Pharmaceutical manufacturers must adhere to strict guidelines and regulations to ensure that the drug is safe for human consumption. Any impurities found must be identified, quantified, and controlled to ensure the drug is safe and effective.