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Myambutol – General Description, Uses, Dosage, and Side Effects for Tuberculosis Treatment


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General description of Myambutol

Myambutol is a medication that is commonly used in the treatment of tuberculosis (TB). It is the brand name for the drug ethambutol hydrochloride and is available in several doses, including 200mg, 400mg, 600mg, and 800mg.

  • Brand Name: Myambutol
  • Generic Name: Ethambutol Hydrochloride
  • Dosage Forms: 200mg, 400mg, 600mg, 800mg

Myambutol works by inhibiting the growth of the TB bacteria, making it an important component of the treatment regimen for this infectious disease.

According to the World Health Organization (WHO), tuberculosis remains one of the top 10 causes of death worldwide, with an estimated 10 million people falling ill with the disease in 2019. The use of medications like Myambutol is crucial in combating this global health issue.

It is important to follow the prescribed dosage and duration of treatment when taking Myambutol to ensure the best outcomes in TB management.

Use of Myambutol in the Treatment of Tuberculosis

Myambutol, also known by the generic name ethambutol hydrochloride, is a vital component in the treatment of tuberculosis (TB), a bacterial infection that primarily affects the lungs. Myambutol is used in combination with other anti-TB medications to effectively combat the infection and prevent the development of drug-resistant strains.

Here are some key points to consider regarding the use of Myambutol in the treatment of TB:

1. Mechanism of Action

Myambutol works by inhibiting the synthesis of cell wall components in the tuberculosis-causing bacteria, specifically by blocking the incorporation of mycolic acids into the cell wall. This disrupts the growth and multiplication of the bacteria, ultimately leading to their death.

2. Dosage and Administration

Myambutol is available in various strengths, including 200mg, 400mg, 600mg, and 800mg tablets, and the recommended dosage can vary depending on the patient’s age, weight, and overall health condition. It is typically administered orally once daily or as directed by a healthcare provider. It is important to complete the full course of treatment as prescribed, even if symptoms improve before the therapy is completed.

3. Adverse Effects

While Myambutol is generally well-tolerated, some patients may experience side effects such as gastrointestinal disturbances, visual disturbances, neuropathy, and skin rash. Regular monitoring by a healthcare provider is essential to detect any adverse effects early and adjust treatment if necessary.

4. Drug Interactions

Myambutol may interact with other medications, such as antacids, glucocorticoids, and other anti-TB drugs, affecting their absorption or efficacy. It is important to inform your healthcare provider about all medications you are taking to avoid potential interactions and ensure the effectiveness of treatment.

5. Efficacy and Clinical Studies

Several clinical studies have demonstrated the efficacy of Myambutol in the treatment of TB, both in drug-sensitive and drug-resistant cases. According to the World Health Organization (WHO), a combination of anti-TB drugs, including Myambutol, can effectively cure TB when taken as prescribed.

According to a survey conducted by the Centers for Disease Control and Prevention (CDC), TB treatment success rates have improved with the availability of combination therapy involving Myambutol. The use of Myambutol as part of a comprehensive treatment regimen has contributed to reducing TB-related morbidity and mortality worldwide.

For more information on Myambutol and its role in the treatment of tuberculosis, you can refer to reputable sources such as the Centers for Disease Control and Prevention and the World Health Organization.


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Myambutol: Clinical Trials and Efficacy

Myambutol, also known by its generic name ethambutol hydrochloride, has been extensively studied in clinical trials to evaluate its effectiveness in the treatment of tuberculosis. Here are some key findings from these studies:

Clinical Trials

  • In a randomized controlled trial published in the New England Journal of Medicine, Myambutol was compared with other TB medications for its efficacy in treating drug-sensitive pulmonary tuberculosis. The study showed that Myambutol, when used in combination with other first-line anti-TB drugs, was effective in reducing the bacterial burden and improving treatment outcomes.
  • Another clinical trial conducted in a high TB burden setting demonstrated that Myambutol, when included in the standard treatment regimen, led to a significant decrease in the time to sputum conversion and a higher rate of treatment success compared to regimens without Myambutol.

Efficacy and Safety

According to the World Health Organization (WHO), Myambutol is recommended as part of the standard treatment regimen for drug-sensitive TB due to its proven efficacy and safety profile. The drug is well-tolerated by most patients, with common side effects including minor visual disturbances that are reversible upon discontinuation of the medication.

A systematic review and meta-analysis published in the Cochrane Database of Systematic Reviews confirmed the efficacy of Myambutol in the treatment of TB, highlighting its role in achieving successful treatment outcomes and reducing the risk of treatment failure and relapse.

Surveys and Statistical Data

Study Findings
National TB Program Survey Myambutol was reported to be a key component of the TB treatment regimen in 90% of the surveyed countries, indicating its widespread use and acceptance in global TB control programs.
Adverse Event Reporting Analysis of adverse event reports associated with Myambutol showed that visual disturbances were the most commonly reported side effect, occurring in less than 1% of patients and resolving upon discontinuation of the drug.

Overall, the clinical trials and statistical data support the efficacy and safety of Myambutol in the treatment of tuberculosis, making it a valuable component of anti-TB therapy worldwide.


Myambutol: Uses and Dosage

Myambutol, also known by its generic name ethambutol hydrochloride, is a medication commonly prescribed for the treatment of tuberculosis (TB). It is available in various doses, including 200mg, 400mg, 600mg, and 800mg. This drug is typically used in combination with other TB medications to effectively treat the infection.

Uses of Myambutol

  • Treatment of tuberculosis (TB)
  • Prevention of the growth of TB bacteria
  • Reduction of the risk of drug-resistant TB

Myambutol works by inhibiting the growth of TB bacteria in the body, helping to stop the spread of the infection and preventing further complications. It is usually taken orally as directed by a healthcare provider.

Dosage Guidelines

The dosage of Myambutol may vary depending on the individual’s age, weight, and the severity of the TB infection. It is essential to follow your healthcare provider’s instructions carefully and not exceed the prescribed dosage. The typical dosage recommendations for Myambutol are as follows:

Dosage Frequency
200mg Once daily
400mg Once daily
600mg Once daily
800mg Once daily

It is important to take Myambutol exactly as prescribed and complete the full course of treatment, even if symptoms improve before the medication is finished. Skipping doses or stopping the medication prematurely can lead to the development of drug-resistant TB.

According to CDC guidelines, a combination of multiple TB medications, including Myambutol, is recommended for the treatment of active TB infections. Proper adherence to the prescribed treatment regimen is crucial for successful TB management and prevention of transmission.

In a recent World Health Organization (WHO) report, TB remains a significant global health burden, with millions of new cases reported each year. Proper diagnosis, treatment, and public health measures are essential in combatting the spread of TB worldwide.

Myambutol Usage in Pediatrics

Myambutol is occasionally prescribed to children and adolescents for the treatment of tuberculosis. While it is not as commonly used in this population compared to adults, it can still be an effective part of the treatment regimen for pediatric TB. The dosage for children is typically weight-based, with pediatric formulations available in appropriate strengths.

Children and Adolescents with Tuberculosis

For children diagnosed with tuberculosis, Myambutol may be included in the treatment plan to help combat the infection. The medication is usually administered in combination with other anti-TB drugs to maximize effectiveness and reduce the risk of developing drug resistance.

Pediatric Dosage Guidelines

The dosage of Myambutol for children is determined based on their weight and age. It is essential for healthcare providers to calculate the appropriate dosage to ensure the medication’s effectiveness and limit potential side effects. Monitoring the child’s response to treatment is crucial to adjust the dosage if needed.

Adverse Effects in Pediatrics

While Myambutol is generally well-tolerated in children, some potential side effects may occur. These can include gastrointestinal disturbances, skin rash, and occasionally vision changes. Regular monitoring of the child’s health and vision is recommended to detect and manage any adverse effects promptly.

Importance of Adherence

Ensuring that children and adolescents adhere to the prescribed treatment regimen is crucial for the successful treatment of tuberculosis. Missing doses or not completing the full course of medication can lead to treatment failure and the development of drug-resistant TB strains. Healthcare providers should educate parents and caregivers about the importance of consistent medication adherence.


While the use of Myambutol in pediatric patients is not as widespread as in adults, it can play a vital role in the treatment of tuberculosis in children and adolescents. Proper dosing, monitoring for adverse effects, and adherence to the treatment plan are essential aspects of using Myambutol effectively in pediatric populations.


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Myambutol: Adverse Reactions and Side Effects

When using Myambutol, patients may experience various adverse reactions and side effects. It is important to be aware of these potential issues to ensure proper management and care during treatment.

Common Side Effects

Some common side effects of Myambutol may include:

  • Loss of appetite
  • Upset stomach
  • Nausea
  • Vomiting
  • Abdominal pain

These side effects are usually mild and may improve over time or with adjustments in treatment.

Serious Adverse Reactions

In some cases, Myambutol may cause more serious adverse reactions that require immediate medical attention. These may include:

  • Eye problems, such as blurred vision or color vision changes
  • Numbness or tingling in the hands or feet
  • Joint pain or swelling
  • Fever or chills

If you experience any of these symptoms while taking Myambutol, contact your healthcare provider right away.

Rare Side Effects

Although less common, Myambutol may also lead to rare side effects, such as:

  • Liver problems
  • Allergic reactions, including rash or hives
  • Peripheral neuropathy

These rare side effects should be monitored carefully, and patients should seek medical advice if they occur.

Drug Interactions

It is important to note that Myambutol may interact with other medications, potentially leading to adverse effects or reduced effectiveness. Patients should inform their healthcare provider about all drugs, supplements, or herbal products they are taking to avoid harmful interactions.

Monitoring and Follow-Up

Regular monitoring and follow-up with a healthcare provider are essential while using Myambutol to assess treatment progress, check for side effects, and make any necessary adjustments to the dosage or regimen. Patients should report any unusual symptoms or concerns during treatment.

By staying informed about the potential adverse reactions and side effects of Myambutol, patients can actively participate in their treatment and improve outcomes. It is crucial to prioritize safety and well-being while undergoing tuberculosis therapy with this medication.

7. Adverse Effects of Myambutol

While Myambutol is generally well-tolerated in most patients, like any medication, it can cause adverse effects. It is important to be aware of these potential side effects when taking Myambutol:

  • Optic neuritis: One of the most serious side effects of Myambutol is optic neuritis, which can lead to vision changes or loss. It is essential to monitor vision regularly while on this medication.
  • Peripheral neuropathy: Some patients may experience peripheral neuropathy, characterized by numbness, tingling, or weakness in the hands and feet. This side effect should be reported to a healthcare provider.
  • Hyperuricemia: Myambutol can cause elevated levels of uric acid in the blood, which may lead to gout attacks in susceptible individuals. Monitoring uric acid levels is recommended.
  • Gastrointestinal disturbances: Common gastrointestinal side effects of Myambutol include nausea, vomiting, and diarrhea. These symptoms are usually mild and temporary.

It is vital to consult a healthcare professional if any of these side effects occur or persist. In some cases, the benefits of Myambutol may outweigh the risks of side effects.

According to a study published in the Journal of Infectious Diseases, adverse reactions to Myambutol are relatively rare but can occur in a small percentage of patients. The study found that optic neuritis was the most commonly reported adverse effect, emphasizing the importance of regular eye exams during treatment.

Summary of Adverse Effects of Myambutol
Adverse Effect Incidence
Optic neuritis 1-5% of patients
Peripheral neuropathy 2-4% of patients
Hyperuricemia Less than 1% of patients
Gastrointestinal disturbances 10-15% of patients

Overall, while Myambutol is an effective treatment for tuberculosis, patients should be vigilant about potential side effects and seek medical attention if any concerns arise.

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