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Myambutol is an antibiotic used in the treatment of tuberculosis. It works by stopping the growth of the bacteria. It is usually used in combination with other tuberculosis medications.

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Myambutol Information

Myambutol Medication Information Leaflet

Common Use

Myambutol is commonly used in the treatment of tuberculosis (TB). It is often used in combination with other medications to effectively treat TB infections.

Generic Ingredient

The generic name for Myambutol is ethambutol.


Myambutol is classified as an antimycobacterial agent and it is specifically used as a part of the treatment for tuberculosis.

Clinical Use

The clinical use of Myambutol involves its role in targeting the growth of tuberculosis bacteria, thus aiding in the treatment of the infection.

Spectrum Of Activity

Myambutol is active against Mycobacterium tuberculosis and some other mycobacterial species causing TB infections.

Drug interaction

Myambutol may interact with certain medications such as antacids containing aluminum hydroxide, which may reduce the absorption of Myambutol. It is important to consult a healthcare professional before taking any other medications alongside Myambutol.

Dosage and Directions

The dosage of Myambutol is usually based on weight. It is important to follow the specific dosage instructions provided by a healthcare professional. Myambutol is typically taken orally with or without food.

Contraindications and Precautions

Myambutol should be used with caution in individuals with kidney disease or vision problems. It is important to inform the healthcare professional of any pre-existing conditions or medications before taking Myambutol.

Possible side effect

Common side effects of Myambutol may include vision changes, abdominal pain, nausea, and vomiting. If any of these side effects persist or worsen, it is essential to seek medical attention.

Missed dose and Overdose

If a dose of Myambutol is missed, it should be taken as soon as remembered. However, if it is almost time for the next dose, the missed dose should be skipped. In case of an overdose, medical assistance should be sought immediately.

Special Cases

Individuals with vision problems or eye conditions should undergo regular eye examinations while taking Myambutol as it may cause optic neuropathy associated with red-green color blindness and visual acuity impairment.

Known Non-standard Use

Emerging evidence suggests Myambutol may have potential non-standard uses in the treatment of nontuberculous mycobacterial (NTM) infections, although further research is necessary in this area.

Patient Considerations

Patients should be aware of the potential for vision changes while taking Myambutol. It is crucial to report any changes in vision to a healthcare professional.

Possible Risks

Myambutol may pose a risk of optic neuropathy, particularly affecting color vision and visual acuity. Regular monitoring and reporting of any visual changes are crucial for patient safety.

Breastfeeding and Pregnancy

The use of Myambutol during pregnancy or breastfeeding should be carefully considered based on the potential benefits and risks. Healthcare professionals should be consulted before use during these periods.

Known Alternatives

Alternative medications for treating tuberculosis infections may include isoniazid, rifampin, and pyrazinamide. These medications are often used in combination to effectively treat TB.


Myambutol should be stored at room temperature, away from moisture and heat. It is essential to keep this medication out of reach of children and pets.

Myambutol FAQ

What is Myambutol used for?

Myambutol, also known as ethambutol, is an antibiotic primarily used to treat tuberculosis. It is often used in combination with other medications to effectively combat the infection.

How does Myambutol work?

Myambutol works by inhibiting the formation of the cell wall in the bacteria that cause tuberculosis. This prevents the growth and reproduction of the bacteria, aiding in the treatment of the infection.

What are the potential side effects of Myambutol?

Some potential side effects of Myambutol include vision changes, such as red-green color blindness, and gastrointestinal disturbances. It is important to discuss any concerns with a healthcare professional.

How long does it take for Myambutol to start working?

The time it takes for Myambutol to start working can vary from person to person. It is essential to complete the full course of treatment as prescribed by a healthcare provider, even if symptoms improve before the course is finished.

Can Myambutol be taken during pregnancy or while breastfeeding?

The use of Myambutol during pregnancy or while breastfeeding should be discussed with a healthcare professional. They can provide guidance on the potential risks and benefits of using this medication in such circumstances.

What should I do if I miss a dose of Myambutol?

If a dose of Myambutol is missed, it should be taken as soon as remembered, unless it is almost time for the next dose. In such cases, the missed dose should be skipped, and the regular dosing schedule should be resumed.

Are there any specific dietary restrictions while taking Myambutol?

There are no specific dietary restrictions while taking Myambutol. However, it is important to maintain a healthy and balanced diet to support the body during the treatment of tuberculosis.

Can Myambutol interact with other medications?

Myambutol can interact with certain medications, so it is crucial to inform the healthcare provider about all current medications, including over-the-counter products and supplements, before starting this medication.

Is it safe to drive or operate machinery while taking Myambutol?

Myambutol may cause vision changes, so it is important to be cautious when driving or operating machinery. If experiencing any vision-related side effects, it is advisable to avoid these activities and seek medical advice.

Can alcohol be consumed while taking Myambutol?

It is generally recommended to avoid or limit alcohol consumption while taking Myambutol, as alcohol may exacerbate certain side effects and could potentially impact the efficacy of the medication.

What monitoring is required during Myambutol treatment?

Regular monitoring of vision and liver function may be necessary during Myambutol treatment. Healthcare providers can assess the need for such monitoring based on individual health status and potential risk factors.

Is there a risk of developing drug-resistant tuberculosis while using Myambutol?

When used inappropriately or in isolation, there is a risk of developing drug-resistant tuberculosis. It is imperative to adhere to the prescribed treatment regimen and not to self-medicate with Myambutol.

Can Myambutol be crushed or split?

Myambutol should not be crushed or split without consulting a healthcare professional, as it may affect the efficacy and absorption of the medication.

What precautions should be taken while using Myambutol?

It is important to follow the prescribed dosage, complete the full course of treatment, and not to share Myambutol with others. Additionally, regular follow-ups with a healthcare provider are essential to monitor progress and address any concerns.

Is Myambutol suitable for pediatric use?

Myambutol can be prescribed for pediatric use, but the dosage and duration of treatment will be determined by a healthcare professional based on the child's age, weight, and medical history. It is crucial to follow the healthcare provider's guidance.

Myambutol Properties

  • Clinical use: Combination therapy for tuberculosis
  • Spectrum of activity: Narrow-spectrum
  • Mechanism of action: Impairs cell wall synthesis
  • Classification: Antitubercular agent
  • Recommended Dosage: 15-25 mg/kg once daily
  • Basic Side Effects: Visual disturbances, Rash, Joint pain
  • Serious Side Effects: Optic neuritis, Hepatitis

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