Data updated: Mar 10, 2026
ANTIZOL
FOMEPIZOLE
Approved 1997-12-04
2
Indications
--
Phase 3 Trials
28
Years on Market
Details
- Status
- Discontinued
- First Approved
- 1997-12-04
- Routes
- INJECTION
- Dosage Forms
- INJECTABLE
ANTIZOL Approval History
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What ANTIZOL Treats
2 FDA approvalsOriginally approved for its first indication in 1997 . Covers 2 distinct patient populations.
- Other (2)
Other
(2 approvals)- • Approved indication (Dec 1997)
- • Approved indication (Dec 2000)Letter
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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.
ANTIZOL FDA Label Details
ProANTIZOL Patents & Exclusivity
Latest Patent: Jun 2027
Patents (1 active)
US7553863
Expires Jun 30, 2027
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.