Displaying 8 results of Levocarnitine Impurities Levocarnitine is a medication used to treat carnitine deficiency, but it can contain impurities that can be harmful to consumers. These impurities can be generated during the manufacturing process or can be present in the raw materials used to make the medication. Regular testing and monitoring of levocarnitine batches is necessary to ensure the safety and efficacy of the medication.