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Data updated: Mar 10, 2026

ETHAMBUTOL HYDROCHLORIDE

ETHAMBUTOL HYDROCHLORIDE
Infectious Disease Approved 1999-11-30
3
Indications
--
Phase 3 Trials
26
Years on Market

Details

Status
Prescription
First Approved
1999-11-30
Routes
ORAL
Dosage Forms
TABLET

ETHAMBUTOL HYDROCHLORIDE Approval History

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What ETHAMBUTOL HYDROCHLORIDE Treats

1 indications

ETHAMBUTOL HYDROCHLORIDE is approved for 1 conditions since its original approval in 1999. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Pulmonary Tuberculosis
Source: FDA Label

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

ETHAMBUTOL HYDROCHLORIDE FDA Label Details

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Indications & Usage

Ethambutol Hydrochloride Tablets, USP are indicated for the treatment of pulmonary tuberculosis. It should not be used as the sole antituberculous drug, but should be used in conjunction with at least one other antituberculous drug. Selection of the companion drug should be based on clinical experience, considerations of comparative safety, and appropriate in vitro susceptibility studies. In patients who have not received previous antituberculous therapy, i.e., initial treatment, the most frequently used regimens have been the following: Ethambutol hydrochloride, USP plus isoniazid Ethambutol ...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.