Displaying 16 results of Mycophenolic Impurities Mycophenolic impurities are unwanted substances that may be present in mycophenolate drugs, which are used to prevent organ rejection in transplant patients. These impurities can potentially compromise the safety and efficacy of the medication. Regulatory agencies have set strict limits on the levels of mycophenolic impurities allowed in drug products, and manufacturers must perform rigorous testing and quality control measures to ensure compliance.