Ethambutol Tablets 200 Mg

What Is Ethambutol Tablets 200 mg?

Ethambutol is an antibiotic classified as a bacteriostatic antitubercular agent. It works by interfering with the synthesis of the TB bacteria’s cell wall, slowing bacterial growth. Because tuberculosis bacteria can develop resistance when single drugs are used, ethambutol is always prescribed in combination with other antitubercular medicines, such as isoniazid, rifampicin, and pyrazinamide.

The 200 mg strength is typically used as part of weight-based dosing in adult and adolescent regimens. Ethambutol tablets should be taken exactly as prescribed, and the full treatment course must be completed to ensure effectiveness and help prevent resistance.

How Ethambutol Works

Ethambutol disrupts the synthesis of arabinogalactan, a critical component of the mycobacterial cell wall. By weakening cell wall formation, ethambutol helps enhance the activity of other TB medications and slows bacterial replication. This mechanism supports effective combination therapy and contributes to improved clinical outcomes in tuberculosis treatment.

Indications

Ethambutol Tablets 200 mg are indicated for:

• Pulmonary tuberculosis (lung TB)

• Extrapulmonary tuberculosis (TB outside the lungs)

• As part of a multidrug antitubercular regimen

Ethambutol is not used as a monotherapy to treat TB due to the risk of bacterial resistance.

Dosage & Administration

• Typical adult dose: 200 mg once daily, or as directed by a clinician

• Take with a full glass of water

• Can be taken with or without food, based on physician instructions

• Complete the full prescribed course to ensure effective treatment

The exact dose and duration are determined by the patient’s age, weight, disease severity, and response to therapy.

Safety Information & Precautions

Vision Monitoring

Ethambutol may affect vision, particularly optic nerve function. Before starting treatment and periodically throughout therapy, patients should have:

• Visual acuity tests

• Colour perception assessments

Report any new or worsening vision changes — such as blurred vision, inability to distinguish colours, or visual field changes — to a healthcare provider immediately.

Before Taking Ethambutol

Inform your healthcare provider if you have:

• Pre-existing eye disorders

• Kidney disease

• Elevated uric acid or gout

• Any history of drug allergies

Discuss all current medications and supplements to avoid interactions.

Possible Side Effects

Common side effects may include:

• Blurred vision or colour changes

• Headache

• Dizziness

• Loss of appetite

• Nausea

• Joint or muscle pain

If you experience significant vision changes, persistent headaches, severe dizziness, or unusual neurological symptoms, seek medical evaluation promptly.

Drug Interactions

Ethambutol may interact with:

• Antacids (especially those with aluminum)

• Other antitubercular drugs

• Medications affecting uric acid levels

Always share your medication list with your healthcare provider to prevent adverse interactions.

Storage Instructions

Store Ethambutol Tablets 200 mg in a cool, dry place below 25 °C. Protect from direct sunlight and moisture. Keep out of reach of children and pets.

FAQs