Data updated: Mar 10, 2026
DESYREL
TRAZODONE HYDROCHLORIDE
Approved 1981-12-24
3
Indications
--
Phase 3 Trials
44
Years on Market
Details
- Status
- Discontinued
- First Approved
- 1981-12-24
- Routes
- ORAL
- Dosage Forms
- TABLET
DESYREL Approval History
Loading approval history...
What DESYREL Treats
3 FDA approvalsOriginally approved for its first indication in 1981 . Covers 3 distinct patient populations.
- Other (3)
Other
(3 approvals)- • Approved indication (Dec 1981)
- • Approved indication (Sep 1986)
- • Approved indication (Nov 1988)
🔬
Pro Active Pipeline
Ongoing clinical trials by development phase
Loading...
⭐
Pro Key Completed Trials
Completed studies with published results, ranked by significance
Loading...
📊
Trial Timeline
Full development history with FDA approval milestones
Loading...
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.
DESYREL FDA Label Details
ProDESYREL Patents & Exclusivity
Latest Patent: Mar 2029
Patents (16 active)
US8133893
Expires Mar 13, 2029
+ 6 more patents
Source: FDA Orange Book
Want competitive intelligence?
See who's developing similar drugs and track their progress
Data Sources
Data sourced from official FDA and NIH databases. Click links to verify on original sources.