Estazolam
As of the edition of 20 October 2026, Estazolam is a small molecule: marketed, first approved in 1977 (FR); acts on GABRA1, GABRA2 and GABRA3 and 4 more.
Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.
The drug
- Status
- Marketed; latest approval 2002
- Kind
- Small molecule
- Brand name
- Prosom
- First approved
- 19 December 1977 (FR)
- Approvals on record
- 4 in 3 regions
- Holder of the most recent approval
- Abbott; 3 holders in all
- Registered trials
- 2, 0 stopped early
- Disease areas
- Mental health; Nervous system; Cancer
US protection
No US approval on record.
With no US approval on record there are no listed US patents or exclusivities.
This is the US only.
Targets
| Gene | Protein | UniProt |
|---|---|---|
| GABRA1 | Gamma-aminobutyric acid receptor subunit alpha-1 | P14867 |
| GABRG2 | Gamma-aminobutyric acid receptor subunit gamma-2 | P18507 |
| GABRA5 | Gamma-aminobutyric acid receptor subunit alpha-5 | P31644 |
| GABRA3 | Gamma-aminobutyric acid receptor subunit alpha-3 | P34903 |
| GABRA2 | Gamma-aminobutyric acid receptor subunit alpha-2 | P47869 |
| GABRG1 | Gamma-aminobutyric acid receptor subunit gamma-1 | Q8N1C3 |
| GABRG3 | Gamma-aminobutyric acid receptor subunit gamma-3 | Q99928 |
Registered trials
| Phase | Trials | Completed | Active | Stopped early |
|---|---|---|---|---|
| Phase 3 | 2 | 1 | 1 | 0 |
| All trials | 2 |
Who has held its approvals
| Company | Role | Years |
|---|---|---|
| Abbott | Acquired holder and Earlier holder | 1990 to now |