Data updated: Mar 10, 2026
CHLORZOXAZONE
CHLORZOXAZONE
Approved 1981-10-06
28
Indications
--
Phase 3 Trials
44
Years on Market
Details
- Status
- Discontinued
- First Approved
- 1981-10-06
- Routes
- ORAL
- Dosage Forms
- TABLET
CHLORZOXAZONE Approval History
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What CHLORZOXAZONE Treats
28 FDA approvalsOriginally approved for its first indication in 1981 . Covers 28 distinct patient populations.
- Other (28)
Other
(28 approvals)- • Approved indication (Oct 1981)
- • Approved indication (Sep 1983)
- • Approved indication (May 1987)
- • Approved indication (May 1988)
- • Approved indication (Aug 1989)
- • Approved indication (Sep 1990)
- • Approved indication (Jul 1991)
- • Approved indication (Dec 1993)
- • Approved indication (Sep 1995)
- • Approved indication (Aug 1996)
- • Approved indication (Jun 2010)Letter
- • Approved indication (Jun 2016)
- • Approved indication (Sep 2019)
- • Approved indication (Nov 2019)Letter
- • Approved indication (May 2020)
- • Approved indication (Jun 2020)
- • Approved indication (Jul 2020)
- • Approved indication (Sep 2020)
- • Approved indication (Nov 2020)
- • Approved indication (Jul 2021)
- • Approved indication (Apr 2022)
- • Approved indication (Oct 2022)
- • Approved indication (Jan 2023)
- • Approved indication (Jan 2023)
- • Approved indication (Apr 2023)
- • Approved indication (Apr 2023)
- • Approved indication (Aug 2023)
- • Approved indication (Jan 2024)
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Pro Active Pipeline
Ongoing clinical trials by development phase
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Pro Key Completed Trials
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.
CHLORZOXAZONE FDA Label Details
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Data Sources
Data sourced from official FDA and NIH databases. Click links to verify on original sources.