Displaying 13 results of Terazosin Impurities Terazosin is a medication used to treat high blood pressure and symptoms of an enlarged prostate. However, the manufacturing process of terazosin may result in the presence of impurities, which are unwanted substances that can affect the purity, potency, and safety of the drug. These impurities may include related compounds, degradation products, and residual solvents. The identification and quantification of terazosin impurities are important for ensuring the quality and efficacy of the medication.