Displaying 3 results of Isometheptene Impurities Isometheptene is a medication used for the treatment of migraines. However, during the manufacturing process, impurities may be introduced that can affect the safety and efficacy of the drug. These impurities can include residual solvents, by-products of chemical reactions, or other contaminants. It is important to carefully monitor and control the levels of isometheptene impurities to ensure the highest quality of the medication.