Displaying 3 results of Etilefrine Impurities Etilefrine is a medication used to treat low blood pressure. However, the drug may contain impurities that can affect its safety and efficacy. These impurities may result from the drug manufacturing process or storage conditions. Therefore, it is important to identify and quantify these impurities to ensure the quality of the drug product. Analytical methods such as high-performance liquid chromatography (HPLC) are used to detect and quantify Etilefrine impurities.