Displaying 7 results of Ethambutol Impurities Ethambutol is an antibiotic that is used to treat tuberculosis. However, it is important to ensure that the medication is pure and free from any impurities that could negatively affect its efficacy or safety. Ethambutol impurities can include degradation products, solvents, and other contaminants that may be introduced during the manufacturing process. It is important to monitor and control these impurities to ensure the safety and effectiveness of the medication.