Also known as:
Ethambutol is a prescription medication used to treat tuberculosis (TB). Ethambutol belongs to a group
of drugs called antimycobacterial antibiotics. TB is caused by a certain bacteria. Ethambutol works by
stopping the bacteria from forming a cell wall, which kills the bacteria.
This medication comes in tablet form. It is taken once a day with or without food.
Common side effects of Ethambutol include loss of appetite, upset stomach, and numbness or tingling in
hands and feet.
Ethambutol should not be used alone, in initial treatment or in retreatment. Ethambutol should be
administered on a once every 24-hour basis only. Absorption is not significantly altered by
administration with food. Therapy, in general, should be continued until bacteriological conversion has
become permanent and maximal clinical improvement has occurred.
Ethambutol is not recommended for use in pediatric patients under thirteen years of age since safe
conditions for use have not been established.
If you take too much Ethambutol, call your local Poison Control Center or seek emergency medical
attention right away.
Store at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do
not store in the bathroom. Keep all medicines away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so.
Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local
waste disposal company for more details about how to safely discard your product.