Displaying 8 results of Perampanel Impurities Perampanel Impurities are the by-products or unwanted substances that may be present during the production or storage of perampanel, a medication used for treating seizures. These impurities can affect the purity, potency, and safety of the drug. Therefore, it is essential to monitor and control the levels of perampanel impurities to ensure the quality and efficacy of the drug. Various analytical methods are used to detect and quantify perampanel impurities, and their limits are specified by regulatory agencies.