Drug

Pentazocine

As of the edition of 20 October 2026, Pentazocine is a small molecule: marketed, first approved in 1982 (US); acts on SIGMAR1; no US protection is listed.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Marketed; latest approval 1982
Kind
Small molecule
Brand name
Talwin
First approved
1 January 1982 (US)
Approvals on record
5 in 1 region
Holder of the most recent approval
Sanofi; 2 holders in all
Registered trials
4, 0 stopped early
Disease areas
Nervous system; Mental health

US protection

No US protection is listed.

The FDA registers list no drug-substance patent or exclusivity that counts for this drug.

This is the US only.

Companies that need a new molecule because of this drug

1 company on route A because of this drug.

Companies on route A for this drug

In the product

1 company is on route A because of Pentazocine.

Target

GeneProteinUniProt
SIGMAR1Sigma non-opioid intracellular receptor 1Q99720

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase not stated1000
Phase 11100
Phase 21100
Phase 41000
All trials4

Who has held its approvals

CompanyRoleYears
PfizerAcquired holder2005 to now
SanofiEarlier holder