Ganaxolone is a medication used to treat epilepsy and depression. However, it is important to ensure that the medication is pure and free from any impurities. Ganaxolone impurities may include any substances that are not intended to be present in the medication, such as residual solvents, degradation products, and intermediates. These impurities can affect the safety and efficacy of the medication, so it is crucial to monitor and control them during the manufacturing process.