Known targets — ChEMBL curated mechanism
The experimentally established mechanism targets of Fentanyl. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.
Predicted protein targets (top 20)
| gene | UniProt | supporting neighbours | confidence | |
|---|---|---|---|---|
| ▸ | OPRM1 known ✓ | P35372 | 9/20 | 1.00 |
| ▸ | OPRD1 | P41143 | 7/20 | 1.00 |
| ▸ | OPRK1 | P41145 | 5/20 | 1.00 |
| ▸ | SIGMAR1 | Q99720 | 2/20 | 1.00 |
| ▸ | SLC22A1 | O15245 | 1/20 | 1.00 |
| ▸ | NR1I2 | O75469 | 1/20 | 1.00 |
| ▸ | ABCB1 | P08183 | 1/20 | 1.00 |
| ▸ | CHRM1 | P11229 | 1/20 | 1.00 |
| ▸ | DRD2 | P14416 | 1/20 | 1.00 |
| ▸ | ADRA2B | P18089 | 1/20 | 1.00 |
| ▸ | ADRA2C | P18825 | 1/20 | 1.00 |
| ▸ | CHRM3 | P20309 | 1/20 | 1.00 |
| ▸ | MAOA | P21397 | 1/20 | 1.00 |
| ▸ | DRD4 | P21917 | 1/20 | 1.00 |
| ▸ | MAOB | P27338 | 1/20 | 1.00 |
| ▸ | ADRA1A | P35348 | 1/20 | 1.00 |
| ▸ | HRH1 | P35367 | 1/20 | 1.00 |
| ▸ | ADRA1B | P35368 | 1/20 | 1.00 |
| ▸ | DRD3 | P35462 | 1/20 | 1.00 |
| ▸ | CHRNA4 | P43681 | 1/20 | 1.00 |
Click a target to see other patent compounds predicted against it — the reverse direction, in place.
Similar compounds — the chemically nearest patent molecules
Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| Fentanyl SCHEMBL916599 | 1.00 | OPRM1 (1.00) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL4326756 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL28383546 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL4353786 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL4321837 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL4324385 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL4971300 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL18249370 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL22637301 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 | |
| Fentanyl SCHEMBL242876 | 0.99 | OPRM1 (0.98) | OPRM1OPRD1OPRK1SIGMAR1SLC22A1 |
Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.
Patent provenance — the patents this molecule appears in, and who filed them
Appears in 81081 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-20260146105-A1 | ANTIBODIES AGAINST FENTANYL AND ANALOGS AND METHODS OF USE THEREOF | REGENTS OF THE UNIVERSITY OF MINNESOTA (US) | 2026-05-28 | — | — | US | claimed |
| US-20260144787-A1 | COMPOSITIONS AND METHODS FOR TREATING STIMULANT-INDUCED AGITATION | MARSHALL UNIVERSITY RESEARCH CORPORATION (US) | 2026-05-28 | — | — | US | claimed |
| EP-4747639-A2 | BETA-GALACTOSIDASE ENZYME-BASED IMMUNOASSAY | Abbott Diagnostics Scarborough, Inc. (US) | 2026-05-27 | — | — | EP | claimed |
| EP-4747263-A1 | LIPID NANOPARTICLES AND USES THEREOF | University of Connecticut (US) | 2026-05-27 | — | — | EP | claimed |
| EP-3607938-B1 | PHARMACEUTICAL COMPOSITION | SOVIC BRKICIC LJILJANA (HR) | 2026-05-27 | — | — | EP | claimed |
| US-12637612-B2 | Fluorescent opioid binding compound and uses thereof | GEORGE MASON UNIVERSITY | 2026-05-26 | — | — | US | claimed |
| CN-224286715-U | Disposable fentanyl test kit | Ai Hamaide (CN) | 2026-05-26 | — | — | CN | claimed |
| CN-122075410-A | Dry powder composition for intranasal delivery | — | 2026-05-26 | — | — | CN | claimed |
| WO-2026107229-A1 | REDUCING THE ADDICTIVE LIABILITY OF OPIOID ANALGESICS BY CO- ADMINISTERING 5HT2 RECEPTOR AGONISTS | THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (US) | 2026-05-21 | — | — | WO | claimed |
| US-20260141998-A1 | METHOD FOR TRACKING, VERIFYING, AND AUTHENTICATING MULTI-STAGE CHAIN OF CUSTODY | Courtfact, LLC (US) | 2026-05-21 | — | — | US | claimed |
| EP-0200490-A2 | Compositions for noninvasive administration of sedatives, analgesics, and anesthetics | UNIVERSITY OF UTAH RESEARCH FOUNDATION (US) | 1986-11-05 | — | — | EP | claimed |
| US-4588580-A | Transdermal administration of fentanyl and device therefor | ALZA CORPORATION (US) | 1986-05-13 | — | — | US | claimed |
| EP-0171742-A2 | Transdermal delivery of opioids | E.I. DU PONT DE NEMOURS AND COMPANY (US) | 1986-02-19 | — | — | EP | claimed |
| US-4508715-A | DOPAMINE ANTAGONISTS;OVERDOSE TREATMENT | UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC. (US) | 1985-04-02 | — | — | US | claimed |
| US-4486423-A | ACIDIC AQUEOUS CITRATE | JANSSEN PHARMACEUTICA INC. (US) | 1984-12-04 | — | — | US | claimed |
| EP-0105361-A1 | ANTAGONISM OF CENTRAL NERVOUS SYSTEM DRUGS BY THE ADMINISTRATION OF 4-AMINOPYRIDINE ALONE OR IN COMBINATION WITH OTHER DRUGS | THE UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC. (US) | 1984-04-18 | — | — | EP | claimed |
| WO-1983003541-A1 | ANTAGONISM OF CENTRAL NERVOUS SYSTEM DRUGS BY THE ADMINISTRATION OF 4-AMINOPYRIDINE ALONE OR IN COMBINATION WITH OTHER DRUGS | UNIV GEORGIA RES FOUND (US) | 1983-10-27 | — | — | WO | claimed |
| US-4367738-A | Pre-filled syringe for abusable drugs | JANSSEN PHARMACEUTICA INC. (US) | 1983-01-11 | — | — | US | claimed |
| US-4126684-A | 4-AMINO-3-P-HALOPHENYLBUTYRIC ACIDS AND THEIR DERIVATIVES USED IN THE CONTROL OF NARCOTIC ABUSE | CIBA-GEIGY CORPORATION (US) | 1978-11-21 | — | — | US | claimed |
| US-4053604-A | 3-HYDROXY-3-ISOPROPYL-2,3,4,4A,8,9,13B,14-OCTAHYDRO-1H -BENZO(6,7)CYCLOPENTA(1,2,3-DE)PYRIDO(2,1-A)ISOQUINOLIN-3-OL | AYERST, MCKENNA & HARRISON LIMITED (CA) | 1977-10-11 | — | — | US | claimed |