Piperaquine is an antimalarial drug that is widely used to prevent and treat malaria. However, like many drugs, piperaquine can contain impurities that can affect its safety and efficacy. These impurities can arise during the manufacturing process, storage, or transportation of the drug. Some of the common piperaquine impurities include related substances, degradation products, and residual solvents. It is important to monitor and control these impurities to ensure the quality and safety of piperaquine-based medications.