Displaying 1 results of Zanamivir Impurities Zanamivir impurities refer to any undesired substances or byproducts that may be present in a sample of Zanamivir, a potent antiviral medication used to treat influenza. These impurities can affect the purity and potency of the drug, potentially leading to adverse effects on patients. Accurate identification and quantification of Zanamivir impurities is crucial to ensure the safety and efficacy of the drug.