Displaying 21 results of Ketoprofen Impurities Ketoprofen impurities refer to any substance that is present in a sample of ketoprofen, a nonsteroidal anti-inflammatory drug (NSAID), but is not the active pharmaceutical ingredient. These impurities may be formed during the synthesis, storage, or transportation of the drug and can potentially impact the safety and efficacy of the medication. Therefore, it is essential to identify and quantify these impurities to ensure the quality and purity of the drug product.