Displaying 20 results of Minocycline Impurities Minocycline is an antibiotic medication used to treat bacterial infections. However, during the manufacturing process, impurities may be introduced or formed, which can affect the purity, safety, and efficacy of the drug. These impurities may include degradation products, residual solvents, and other impurities. Therefore, it is essential to monitor and control the levels of these impurities in the final product to ensure the quality of the medication.