Last reviewed · How we verify

Propoxyphene Compound 65 (PROPOXYPHENE)

FDA-approved withdrawn Small molecule Quality 25/100

Propoxyphene Compound 65, also known as PROPOXYPHENE, is a small molecule opioid agonist that targets the glutamate receptor ionotropic, NMDA 3A. Originally developed in 1957, it is used to treat pain and is currently off-patent with 21 generic manufacturers. As an opioid agonist, it works by binding to opioid receptors in the brain, leading to pain relief. However, its commercial status and safety considerations are not well-documented due to the lack of information on its bioavailability and half-life.

At a glance

Generic namePROPOXYPHENE
Drug classOpioid Agonist
TargetGlutamate receptor ionotropic, NMDA 3A
ModalitySmall molecule
Therapeutic areaPain
PhaseFDA-approved
First approval1957

Approved indications

Common side effects

No common side effects on file.

Drug interactions

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
FDA labelMechanism, indications, dosing, boxed warnings, drug interactions
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: