TheraRadar
Data updated: Jun 28, 2026

RELAFEN (nabumetone) · GSK

Immunology Approved 1991-12-24

RELAFEN is FDA-approved to treat 2 conditions (same as NABUMETONE).

1
Indication
--
Phase 3 Trials
34
Years on Market

Details

Status
Discontinued
First Approved
1991-12-24
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: NABUMETONE

RELAFEN Approval History

1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
34 FDA actions from 1991 to 2006
Jan 2006 SUPPL
Label · Labeling
Aug 2005 SUPPL
Label · Labeling
Oct 2001 SUPPL
Label · Labeling

What RELAFEN Treats

2 indications

RELAFEN is approved for 2 conditions since its original approval in 1991. These indications span multiple therapeutic areas including oncology, immunology, and more.

Same approved indications as NABUMETONE (same active ingredient).

Source: FDA Label
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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.

RELAFEN FDA Label Details

Indications & Usage

FDA Label (PDF)

RELAFEN is FDA-approved to treat 2 conditions — same approved indications as NABUMETONE.

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Data Sources

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