Displaying 5 results of Isosorbide Impurities Isosorbide is a pharmaceutical compound used to treat angina and heart failure. However, during its manufacturing process, impurities may be introduced, which can affect its purity and efficacy. These impurities, such as isosorbide dinitrate and isosorbide-5-mononitrate, can also have harmful effects on the body if present in high levels. Therefore, it is important to monitor and control the presence of isosorbide impurities in pharmaceutical products containing this compound.