Also known as:
Myambutol is a prescription medication used to treat tuberculosis (TB). Myambutol belongs to a group
of drugs called antimycobacterial antibiotics. TB is caused by a certain bacteria. Myambutol 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 Myambutol include loss of appetite, upset stomach, and numbness or tingling in
hands and feet.
Initial Treatment: In patients who have not received previous antituberculous therapy, administer
Myambutol 15 mg/kg (7 mg/
lb) of body weight, as a single oral dose once every 24 hours. In the more recent studies, isoniazid has
been administered concurrently in a single, daily, oral dose.
Retreatment: In patients who have received previous antituberculous therapy, administer Myambutol 25
mg/kg (11 mg/lb)
of body weight, as a single oral dose once every 24 hours. Concurrently administer at least one other
antituberculous drug to which the organisms have been demonstrated to be susceptible by appropriate
in-vitro tests. Suitable drugs usually consist of those not previously used in the treatment of the
patient. After 60 days of Myambutol administration, decrease the dose to 15 mg/kg (7mg/ lb) of body
weight, and administer as a single oral dose once every 24 hours.
During the period when a patient is on a daily dose of 25 mg/kg, monthly eye examinations are
If you take too much Myambutol, call your local Poison Control Center or seek emergency medical
attention right away.
Store at room temperature (20 to 25 degrees C [68 to 77 degrees F]) away from light and moisture. Keep
this and all medicines out of the reach of children.