TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

LEFLUNOMIDE

LEFLUNOMIDE
Immunology Approved 2005-09-13
7
Indications
--
Phase 3 Trials
20
Years on Market

Details

Status
Prescription
First Approved
2005-09-13
Routes
ORAL
Dosage Forms
TABLET

LEFLUNOMIDE Approval History

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What LEFLUNOMIDE Treats

7 FDA approvals

Originally approved for its first indication in 2005 . Covers 7 distinct patient populations.

  • Other (7)

LEFLUNOMIDE Boxed Warning

EMBRYO-FETAL TOXICITY and HEPATOTOXICITY Embryo-Fetal Toxicity Leflunomide is contraindicated for use in pregnant women because of the potential for fetal harm. Teratogenicity and embryo-lethality occurred in animals administered leflunomide at doses lower than the human exposure level. Exclude pregnancy before the start of treatment with leflunomide in females of reproductive potential. Advise females of reproductive potential to use effective contraception during leflunomide treatment and duri...

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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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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.

LEFLUNOMIDE FDA Label Details

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Indications & Usage

Leflunomide Tablets, USP are indicated for the treatment of adults with active rheumatoid arthritis (RA). Leflunomide tablets are a pyrimidine synthesis inhibitor indicated for the treatment of adults with active rheumatoid arthritis.

⚠️ BOXED WARNING

WARNING: EMBRYO-FETAL TOXICITY and HEPATOTOXICITY Embryo-Fetal Toxicity Leflunomide is contraindicated for use in pregnant women because of the potential for fetal harm. Teratogenicity and embryo-lethality occurred in animals administered leflunomide at doses lower than the human exposure level. Exc...

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Data Sources

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