Displaying 7 results of Fluorouracil Impurities Fluorouracil is a chemotherapy drug used to treat various types of cancer. However, during the manufacturing process, impurities can sometimes be introduced into the drug substance. These impurities can potentially affect the safety and efficacy of the drug. Therefore, it is important to closely monitor and control the impurities present in Fluorouracil to ensure its quality and safety for patients undergoing cancer treatment.