Doxycycline is a commonly prescribed antibiotic used to treat various bacterial infections. However, the drug may contain impurities that can affect its quality, safety, and efficacy. These impurities can arise during the manufacturing process, storage, or transportation. Some potential impurities in Doxycycline include degradation products, residual solvents, heavy metals, and microbial contaminants. It is important for manufacturers and regulatory authorities to monitor and control these impurities to ensure the safety and effectiveness of the drug