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Myambutol (Generic)

Myambutol (Generic)

Myambutol (Ethambutol) is an antibacterial agent used to treat tuberculosis (TB), and works by stopping the growth of TB cells, which results in cell death. Generic Myambutol offers highly effective treatment of tuberculosis, and is one of the top prescribed medications by doctors!

Generic Myambutol may also be marketed as: Ethambutol (EMB), Servambutol.

*Myambutol® is manufactured by Wyeth-Ayerst Laboratories.


Product Information

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Generic Myambutol is an antibiotic. It prevents growth of the tuberculous bacteria in the body. Generic Myambutol is used to treat tuberculosis (TB).

How to take

Take Generic Myambutol exactly as directed by your doctor. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you.

Take each dose with a full glass (8 ounces) of water.

Generic Myambutol can be taken with or without food. Taking Generic Myambutol with food may decrease stomach upset.

Side effects

If you experience any of the following serious side effects, stop taking Generic Myambutol and seek emergency medical attention or contact your doctor immediately:

  • an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
  • vision changes (e.g., blurring, red-green color blindness);
  • a rash;
  • numbness or tingling in your fingers, toes, hands, or feet;
  • confusion, disorientation, or hallucinations; or
  • fever.

Other, less serious side effects may be more likely to occur. Continue to take Generic Myambutol and talk to your doctor if you experience

  • stomach upset, nausea, vomiting, abdominal pain, or decreased appetite;
  • headache;
  • mild dizziness;
  • worsening gout; or
  • joint pain.

This is not a complete list of side effects and others may occur.


Do NOT use Generic Myambutol if: you are allergic to any ingredient in Ethambutol.

Do not take this medication without first talking to your doctor if you are pregnant or could become pregnant during treatment.

Before taking this medication, tell your doctor if you have

  • ever had an allergic reaction to ethambutol;
  • cataracts, diabetic retinopathy, or optic neuritis; or
  • kidney disease.

Drug interactions

Do not take antacids that contain aluminum within several hours of taking a dose of ethambutol. Aluminum will decrease the amount of ethambutol that is absorbed by the body. If you need an antacid, ask your doctor or pharmacist to recommend one that is aluminum free.

Drugs other than those listed here may also interact with Generic Myambutol.

Missed dose

If you miss a dose of Generic Myambutol, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.


Store Generic Myambutol at room temperature, between 68 and 77 degrees F (20 and 25 degrees C), in a tightly closed container. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Ethambutol out of the reach of children and away from pets.


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