Data updated: Mar 10, 2026
SKELAXIN
METAXALONE
Approved 1962-08-13
1
Indication
--
Phase 3 Trials
63
Years on Market
Details
- Status
- Discontinued
- First Approved
- 1962-08-13
- Routes
- ORAL
- Dosage Forms
- TABLET
SKELAXIN Approval History
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What SKELAXIN Treats
1 FDA approvalsOriginally approved for its first indication in 1962 .
- Other (1)
Other
(1 approval)- • Approved indication (Aug 1962)
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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.
SKELAXIN FDA Label Details
ProSKELAXIN Patents & Exclusivity
Latest Patent: Feb 2026
Patents (2 active)
US7122566
Expires Feb 6, 2026
Source: FDA Orange Book
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Data Sources
Data sourced from official FDA and NIH databases. Click links to verify on original sources.