Displaying 2 results of Carphedon Impurities Carphedon, also known as phenylpiracetam, is a nootropic drug that is commonly used to enhance cognitive function and physical endurance. However, like all pharmaceutical drugs, Carphedon may contain impurities that can have negative effects on the user's health. These impurities can include residual solvents, heavy metals, and other toxic substances that may have been introduced during the manufacturing process. It is important for users to be aware of the potential risks associated with Carphedon impurities and to only purchase high-quality products from reputable sources.