The uses of Ethambutol include: Ethambutol eliminates certain bacteria that cause tuberculosis (TB). It is used with other medicines to treat tuberculosis and to prevent you from giving the infection to others.
Ethambutol comes as a tablet to take by mouth. It usually is taken once a day in the morning. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take ethambutol exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.