Displaying 9 results of Doxazosin Impurities Doxazosin is a drug used to treat hypertension and benign prostatic hyperplasia. However, during the manufacturing process, impurities might be introduced into the final product. These impurities can pose a health risk if present in high levels. Therefore, it is important to monitor and control the levels of Doxazosin impurities to ensure the safety and efficacy of the drug. Analytical methods such as HPLC and GC are used to detect and quantify these impurities.