Thebaine

Opiate alkaloid constituent of opium

Thebaine  Skeletal formula

Ball-and-stick model
Names
IUPAC name

3,6-Dimethoxy-17-methyl-6,7,8,14-tetradehydro-4,5α-epoxymorphinan

Systematic IUPAC name

(4R,7aR,12bS)-7,9-Dimethoxy-3-methyl-2,3,4,7a-tetrahydro-1H-4,12-methano[1]benzofuro[3,2-e]isoquinoline

Other names

Paramorphine

Identifiers

CAS Number

* 115-37-7 Y

3D model (JSmol)

* Interactive image

ChEBI |

* CHEBI:9519 Y

ChEMBL |

* ChEMBL403893 Y

ChemSpider |

* 4481822 Y
* 4479543 Y

ECHA InfoCard | 100.003.713
KEGG |

* C06173 N

MeSH | Thebaine

PubChem CID

* 5324289

UNII |

* 2P9MKG8GX7 Y

CompTox Dashboard (EPA)

* DTXSID7046099

InChI

* InChI=1S/C19H21NO3/c1-20-9-8-19-12-5-7-15(22-3)18(19)23-17-14(21-2)6-4-11(16(17)19)10-13(12)20/h4-7,13,18H,8-10H2,1-3H3/t13-,18+,19+/m1/s1 Y

Key: FQXXSQDCDRQNQE-VMDGZTHMSA-N Y

* InChI=1S/C19H21NO3/c1-20-9-8-19-12-5-7-15(22-3)18(19)23-17-14(21-2)6-4-11(16(17)19)10-13(12)20/h4-7,13,18H,8-10H2,1-3H3/t13-,18+,19+/m1/s1

Key: FQXXSQDCDRQNQE-VMDGZTHMBG

* Key: FQXXSQDCDRQNQE-VMDGZTHMSA-N

SMILES

* COC1=CC=C2[C@@H](C3)N(C)CC[C@@]24C5=C3C=CC(OC)=C5O[C@@H]14

Properties

Chemical formula

| C19H21NO3
Molar mass | 311.37 g/mol
Pharmacology

Dependence liability

| Low[2]
Pharmacokinetics:

Metabolism

| O-demethylation[1]
Legal status |

* AU: S8 (Controlled drug)
* BR: Class A1 (Narcotic drugs)
* CA: Schedule I
* UK: Class A
* US: Schedule II

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)

Infobox references

Chemical compound

Thebaine (paramorphine), also known as codeine methyl enol ether, is an opiate alkaloid, its name coming from the Greek Θῆβαι, Thēbai (Thebes), an ancient city in Upper Egypt. A minor constituent of opium, thebaine is chemically similar to both morphine and codeine, but has stimulatory rather than depressant effects. At high doses, it causes convulsions similar to strychnine poisoning. The synthetic enantiomer (+)-thebaine does show analgesic effects apparently mediated through opioid receptors, unlike the inactive natural enantiomer (−)-thebaine.[3] While thebaine is not used therapeutically, it is the main alkaloid extracted from Papaver bracteatum (Iranian opium / Persian poppy) and can be converted industrially into a variety of compounds, including hydrocodone, hydromorphone, oxycodone, oxymorphone, nalbuphine, naloxone, naltrexone, buprenorphine, butorphanol and etorphine.[4]

Thebaine is controlled under international law, is listed as a Class A drug under the Misuse of Drugs Act 1971 in the United Kingdom, is controlled as an analog of a Schedule II drug per the Analog Act in the United States, and is controlled with its derivatives and salts, as a Schedule I substance of the Controlled Drugs and Substances Act in Canada.[5] The 2013 US Drug Enforcement Administration (DEA) aggregate manufacturing quota for thebaine (ACSCN 9333) was unchanged from the previous year at 145 metric tons.

This alkaloid is biosynthetically related to salutaridine, oripavine, morphine and reticuline.[6]

In 2012 there was an amounted 146,000 kilograms of thebaine produced.[7] In 2013, Australia was the main producer of poppy straw rich in thebaine, followed by Spain and then France. By 2017, worldwide thebaine production dropped to 2,008 kg.[8] Together, those three countries accounted for about 99 per cent of global production of such poppy straw. The Papaver bracteatum seed capsules are the primary source of thebaine, with the stem additionally yielding a significant amount.[9][10]

The Canberra Times of 16 November 2022[11] reported that four batches of Hoyts brand poppy seeds were being recalled due to unusually high levels of thebaine, and that at least twelve people in New South Wales had required medical attention after ingesting them. As of 15 November 2022, Food Standards Australia New Zealand (FSANZ) is coordinating a national recall of a number of poppy seed products due to the potential presence of thebaine.[12]

## Synthesis

[edit]

### Research

[edit]

Thebaine has been produced by GMO E. coli.[13]

## See also

[edit]

* Thebacon
* 6,14-Endoethenotetrahydrooripavine \- the central nucleus of the Bentley compound class of opioids which are derived from thebaine

## References

[edit]

1. ^ Mikus, G.; Somogyi, A. A.; Bochner, F.; Eichelbaum, M. (1991). "Thebaine O-demethylation to oripavine: Genetic differences between two rat strains". Xenobiotica. 21 (11): 1501–9\. doi:10.3109/00498259109044400. PMID 1763524.
2. ^ WHO Advisory Group (1980). "The dependence potential of thebaine". Bulletin on Narcotics. 32 (1): 45–54\. PMID 6778542. Archived from the original on 2014-05-12.
3. ^ Aceto, M. D.; Harris, L. S.; Abood, M. E.; Rice, K. C. (1999). "Stereoselective μ- and δ-opioid receptor-related antinociception and binding with (+)-thebaine". European Journal of Pharmacology. 365 (2–3): 143–7\. doi:10.1016/S0014-2999(98)00862-0. PMID 9988096.2–3&rft.pages=143-7&rft.date=1999&rft_id=info:doi/10.1016/S0014-2999(98)00862-0&rft_id=info:pmid/9988096&rft.au=Aceto,+M.+D.&rft.au=Harris,+L.+S.&rft.au=Abood,+M.+E.&rft.au=Rice,+K.+C.&rfr_id=info:sid/en.wikipedia.org:Thebaine" class="Z3988">
4. ^ "DEA Diversion Control Division" (PDF). Archived (PDF) from the original on 2014-06-11. Retrieved 2014-07-12.
5. ^ "Controlled Drugs and Substances Act". Justice Laws Website. Government of Canada. 2012-11-06. Archived from the original on 2013-11-22. Retrieved 2014-01-12.
6. ^ Novak, B.; Hudlicky, T.; Reed, J.; Mulzer, J.; Trauner, D. (2000). "Morphine Synthesis and Biosynthesis-An Update" (PDF). Current Organic Chemistry. 4 (3): 343–62\. CiteSeerX 10.1.1.515.9096. doi:10.2174/1385272003376292. Archived (PDF) from the original on 2012-06-19.
7. ^ Narcotic Drugs 2014 (PDF). INTERNATIONAL NARCOTICS CONTROL BOARD. 2015. p. 21\. ISBN 9789210481571. Archived (PDF) from the original on 2015-06-02.
8. ^ "International Narcotics Control Board Narcotic Drugs 2018" (PDF). INCB.org.
9. ^ "Narcotic Drugs: Estimated World Requirements for 2015; Statistics for 2013" (PDF). International Narcotics Control Board. United Nations International Narcotics Control Board. 2015. p. 151 ff. Archived (PDF) from the original on June 2, 2015. Retrieved January 7, 2016.
10. ^ Whoriskey, Peter. "Johnson & Johnson companies used a super poppy to make narcotics for popular opioid pills - Washington Post". Washington Post. Retrieved 27 March 2020.
11. ^ "DEA Diversion Control Division". Archived (PDF) from the original on 2014-06-11. Retrieved 2014-07-12.
12. ^ "National Recall of Poppy Seeds". Food Standards Australia New Zealand. Food Standards Australia New Zealand (FSANZ). Retrieved 21 November 2022.
13. ^ "Genetically modified E. coli pump out morphine precursor: Bacteria yield 300 times more opiates than yeast". ScienceDaily.

* v
* t
* e

Opium components

Alkaloids|

* 16-Hydroxythebaine
* Berberine
* Canadine
* Codamine
* Coptisine
* Coreximine
* Cycloartenone
* Cyclolaudenol
* Dehydroreticuline
* Dihydrosanguinarine
* Glaucine
* Isoboldine
* Isocorypalmine
* Laudanidine
* Magnoflorine
* Narceine
* Narceinone
* Norlaudanosoline
* Norsanguinarine
* Oripavine
* Oxysanguinarine
* Palaudine
* Papaverrubine B (O-methyl-porphyroxine)
* Papaverrubine C (epiporphyroxine)
* Reticuline
* Salutaridine (sinoacutine)
* Sanguinarine
* Scoulerine
* Somniferine
* Stepholidine

Morphine group
(Phenanthrenes. Includes opioids)|

* Codeine
* Morphine
* Narcotoline
* Neopine
* Perparin
* Papaverrubine D (porphyroxine)
* Pseudocodeine
* Pseudomorphine
* Thebaine

Isoquinolines|

* Cotarnine
* Eupaverine
* Hydrocotarnine
* Laudanosine
* Laudanine
* Noscapine (narcotine)
* Papaverine
* Papaveraldine
* Xanthaline

Protopine group|

* α-Allocryptopine
* Corycavamine
* Corycavine
* Cryptopine
* Protopine

Tetrahydroprotoberberine group|

* Corydaline
* Corybulbine
* Isocorybulbine
* Capaurine

Aporphine group|

* Dicentrine
* Glaucine
* Corytuberine
* Cularine
* Corydine
* Isocorydine
* Bulbocapnine

Phtalide-isoquinolines|

* Adulmine
* Bicuculline
* Bicucine
* Corlumine

α-Naphthaphenanthridines|

* Chelidonine
* β-Homochelidonoine
* Chelerythrine
* Sanguinarine

Other components|

* Meconic acid
* Cycloartenol

* v
* t
* e

Glycine receptor modulators

Receptor
(ligands)|

| GlyRTooltip Glycine receptor|

* Agonists: β-Alanine
* β-ABA (BABA)
* β-AIBA
* Caesium
* D-Alanine
* D-Serine
* GABA
* Glycine
* Hypotaurine
* Ivermectin
* L-Alanine
* L-Proline
* L-Serine
* L-Threonine
* MDL-27531
* Milacemide
* Picolinic acid
* Propofol
* Quisqualamine
* Sarcosine
* Taurine

* Positive modulators: Alcohols (e.g., brometone, chlorobutanol (chloretone), ethanol (alcohol), tert-butanol (2M2P), tribromoethanol, trichloroethanol, trifluoroethanol)
* Alkylbenzene sulfonate
* Anandamide
* Barbiturates (e.g., pentobarbital, sodium thiopental)
* Chlormethiazole
* D12-116
* Dihydropyridines (e.g., nicardipine)
* Etomidate
* Ginseng constituents (e.g., ginsenosides (e.g., ginsenoside-Rf))
* Glutamic acid (glutamate)
* Ivermectin
* Ketamine
* Neuroactive steroids (e.g., alfaxolone, pregnenolone (eltanolone), pregnenolone acetate, minaxolone, ORG-20599)
* Nitrous oxide
* Penicillin G
* Propofol
* Tamoxifen
* Tetrahydrocannabinol
* Triclofos
* Tropeines (e.g., atropine, bemesetron, cocaine, LY-278584, tropisetron, zatosetron)
* Volatiles/gases (e.g., chloral hydrate, chloroform, desflurane, diethyl ether (ether), enflurane, halothane, isoflurane, methoxyflurane, sevoflurane, toluene, trichloroethane (methyl chloroform), trichloroethylene)
* Xenon
* Zinc

* Antagonists: 2-Aminostrychnine
* 2-Nitrostrychnine
* 4-Phenyl-4-formyl-N-methylpiperidine
* αEMBTL
* Bicuculline
* Brucine
* Cacotheline
* Caffeine
* Colchicine
* Colubrine
* Cyanotriphenylborate
* Dendrobine
* Diaboline
* Endocannabinoids (e.g., 2-AG, anandamide (AEA))
* Gaboxadol (THIP)
* Gelsemine
* iso-THAZ
* Isobutyric acid
* Isonipecotic acid
* Isostrychnine
* Laudanosine
* N-Methylbicuculline
* N-Methylstrychnine
* N,N-Dimethylmuscimol
* Nipecotic acid
* Pitrazepin
* Pseudostrychnine
* Quinolines (e.g., 4-hydroxyquinoline, 4-hydroxyquinoline-3-carboxylic acid, 5,7-CIQA, 7-CIQ, 7-TFQ, 7-TFQA)
* RU-5135
* Sinomenine
* Strychnine
* Thiocolchicoside
* Tutin

* Negative modulators: Amiloride
* Benzodiazepines (e.g., bromazepam, clonazepam, diazepam, flunitrazepam, flurazepam)
* Corymine
* Cyanotriphenylborate
* Daidzein
* Dihydropyridines (e.g., nicardipine, nifedipine, nitrendipine)
* Furosemide
* Genistein
* Ginkgo constituents (e.g., bilobalide, ginkgolides (e.g., ginkgolide A, ginkgolide B, ginkgolide C, ginkgolide J, ginkgolide M))
* Imipramine
* NBQX
* Neuroactive steroids (e.g., 3α-androsterone sulfate, 3β-androsterone sulfate, deoxycorticosterone, DHEA sulfate, pregnenolone sulfate, progesterone)
* Opioids (e.g., codeine, dextromethorphan, dextrorphan, levomethadone, levorphanol, morphine, oripavine, pethidine, thebaine)
* Picrotoxin (i.e., picrotin and picrotoxinin)
* PMBA
* Riluzole
* Tropeines (e.g., bemesetron, LY-278584, tropisetron, zatosetron)
* Verapamil
* Zinc

|

NMDARTooltip N-Methyl-D-aspartate receptor|

* See here instead.

Transporter
(blockers)|

| GlyT1Tooltip Glycine transporter 1|

* ACPPB
* ALX-5407 (NFPS)
* ASP2535
* Bitopertin (RG1678/RO4917838)
* CP-802079
* Ethanol (alcohol)
* Glycyldodecylamide
* GSK1018921
* Iclepertin
* LY-2365109
* Mardepodect
* ORG-24598
* ORG-25935 (SCH-900435)
* Pesampator (BIIB-104, PF-04958242)
* PF-03463275
* Sarcosine
* SNG-12 (Synapsinae)
* SSR-103,800
* SSR-504,734
* Tilapertin

|

GlyT2Tooltip Glycine transporter 2|

* ALX-1393
* Amoxapine
* Ethanol (alcohol)
* NAGly
* Opiranserin (VVZ-149)
* ORG-25543
* VVZ-368

See also
Receptor/signaling modulators
GABA receptor modulators
GABAA receptor positive modulators
Ionotropic glutamate receptor modulators

* v
* t
* e

Opioid receptor modulators

μ-opioid
(MOR)|

| Agonists
(abridged;
full list)|

* 3-HO-PCP
* 7-Acetoxymitragynine
* 7-Hydroxymitragynine
* ψ-Akuammigine
* α-Chlornaltrexamine
* α-Narcotine
* Acetyldihydrocodeine
* Acetylfentanyl
* Acrylfentanyl
* Adrenorphin (metorphamide)
* AH-7921
* Akuammicine
* Akuammidine
* Alfentanil
* Anileridine
* Apparicine
* β-Endorphin
* BAM-12P
* BAM-18P
* BAM-22P
* Benzhydrocodone
* Benzylmorphine
* Bezitramide
* Biphalin
* BU08070
* Buprenorphine
* Butorphan
* Butorphanol
* Butyrfentanyl
* BW373U86
* Carfentanil
* Casokefamide
* Cebranopadol
* Chloroxymorphamine
* Codeine
* DADLE
* DAMGO (DAGO)
* Dermorphin
* Desmetramadol (desmethyltramadol)
* Desomorphine
* Deumitragynine
* Dextromoramide
* Dextropropoxyphene (propoxyphene)
* Dezocine
* Dimenoxadol
* Dimethylaminopivalophenone
* Eluxadoline
* Diamorphine (heroin)
* Dihydrocodeine
* Dihydroetorphine
* Dihydromorphine
* Dinalbuphine sebacate
* Diphenoxylate
* Dipipanone
* Dynorphin A
* Embutramide
* Endomorphin-1
* Endomorphin-2
* Eseroline
* Ethylmorphine
* Etorphine
* Fentanyl
* Fluorophen
* Frakefamide
* Furanylfentanyl
* Hemorphin-4
* Herkinorin
* Hodgkinsine
* Hydrocodone
* Hydromorphinol
* Hydromorphone
* IBNtxA
* Ketamine
* Ketobemidone
* Kratom
* Laudanosine
* Lefetamine
* Leu-enkephalin
* Levacetylmethadol
* Levomethorphan
* Levorphanol
* Lexanopadol
* Loperamide
* Loxicodegol
* LS-115509
* Matrine
* Meptazinol
* Met-enkephalin (metenkefalin)
* Methadone
* Metkefamide
* Metopon
* Mitragynine
* Mitragynine pseudoindoxyl
* Morphiceptin
* Morphine
* Nalbuphine
* Naloxone benzoylhydrazone (NalBzOH)
* Nalmexone
* Naltalimide
* Neopine
* NFEPP
* Nicocodeine
* Nicodicodine
* Nicomorphine
* Norketamine
* Nufenoxole
* Octreotide
* Oliceridine
* Oxycodegol
* Oxymorphone-3-methoxynaltrexonazine (OM-3-MNZ)
* Oripavine
* Oxycodone
* Oxymorphazone
* Oxymorphonazine
* Oxymorphone
* Oxymorphone phenylhydrazone
* OxyPNPH
* Papaver somniferum (opium)
* Pentazocine
* Pericine
* Pethidine (meperidine)
* Phenazocine
* Phencyclidine
* Piminodine
* Piritramide
* PL-017
* Prodine
* Propiram
* PZM21
* Racemethorphan
* Racemorphan
* Remifentanil
* Salsolinol
* SC-17599
* Sinomenine
* Sufentanil
* Tapentadol
* Tetrahydropapaveroline
* TH-030418
* Thebaine
* Thienorphine
* Tianeptine
* Tilidine
* Tramadol
* Trimebutine
* TRIMU 5
* TRV734
* Tubotaiwine
* U-47700
* Valorphin
* Viminol
* Xorphanol

|

Antagonists|

* (3S,4S)-Picenadol
* 2-(S)-N,N-(R)-Viminol
* 3CS-nalmefene
* 4-Caffeoyl-1,5-quinide
* 4′-Hydroxyflavanone
* 4',7-Dihydroxyflavone
* 6β-Naltrexol
* 6β-Naltrexol-d4
* 18-MC
* α-Gliadin
* β-Chlornaltrexamine
* β-Funaltrexamine
* Akuammine
* Alvimopan
* AM-251
* Apigenin
* AT-076
* Axelopran
* Bevenopran
* Catechin
* Catechin gallate
* Clocinnamox
* CTAP
* CTOP
* Cyclofoxy
* Cyprodime
* Diacetylnalorphine
* Diprenorphine
* ECG
* EGC
* Epicatechin
* Eptazocine
* Gemazocine
* Ginsenoside R
* Hyperoside
* Ibogaine
* JDTic
* Levallorphan
* Lobeline
* LY-255582
* LY-2196044
* Methocinnamox
* Methylnaltrexone
* Methylsamidorphan chloride
* Naldemedine
* Nalmefene
* Nalodeine (N-allylnorcodeine)
* Nalorphine
* Nalorphine dinicotinate
* Naloxazone
* Naloxegol
* Naloxol
* Naloxonazine
* Naloxone
* Naltrexazone
* Naltrexonazine
* Naltrexone
* Naltrindole
* Naringenin
* Noribogaine
* Oxilorphan
* Pawhuskin A
* Rimonabant
* Quadazocine
* Samidorphan
* Taxifolin

δ-opioid
(DOR)|

| Agonists|

* 3CS-nalmefene
* 6'-GNTI
* 7-SIOM
* ADL-5747 (PF-04856881)
* ADL-5859
* Alazocine (SKF-10047)
* Amoxapine
* AR-M100390 (ARM390)
* AZD2327
* β-Endorphin
* BAM-18P
* Biphalin
* BU-48
* Butorphan
* Butorphanol
* BW373U86
* Casokefamide
* Cebranopadol
* Codeine
* Cyclazocine
* DADLE
* Deltorphin A
* Deltorphin I
* Deltorphin II
* Desmethylclozapine
* Desmetramadol (desmethyltramadol)
* Dezocine
* Diamorphine (heroin)
* Dihydroetorphine
* Dihydromorphine
* DPDPE
* DPI-221
* DPI-3290
* DSLET
* Ethylketazocine
* Etorphine
* Fentanyl
* FIT
* Fluorophen
* Hemorphin-4
* Hydrocodone
* Hydromorphone
* Ibogaine
* Isomethadone
* JNJ-20788560
* KNT-127
* Kratom
* Laudanosine
* Leu-enkephalin
* Levomethorphan
* Levorphanol
* Lexanopadol
* Lofentanil
* Met-enkephalin (metenkefalin)
* Metazocine
* Metkefamide
* Mitragynine
* Mitragynine pseudoindoxyl
* Morphine
* N-Phenethyl-14-ethoxymetopon
* Norbuprenorphine
* NalBzOH
* Oripavine
* Oxycodone
* Oxymorphone
* Pethidine (meperidine)
* Proglumide
* Racemethorphan
* Racemorphan
* RWJ-394674
* Samidorphan
* SB-235863
* SNC-80
* SNC-162
* TAN-67 (SB-205,607)
* TH-030418
* Thebaine
* Thiobromadol (C-8813)
* Tonazocine
* Tramadol
* TRV250
* Xorphanol
* Zenazocine

|

Antagonists|

* 4',7-Dihydroxyflavone
* 5'-NTII
* 6β-Naltrexol
* 6β-Naltrexol-d4
* α-Santolol
* β-Chlornaltrexamine
* Apigenin
* AT-076
* Axelopran
* Bevenopran
* BNTX
* Catechin
* Catechin gallate
* Clocinnamox
* Diacetylnalorphine
* Diprenorphine
* ECG
* EGC
* Eluxadoline
* Epicatechin
* ICI-154129
* ICI-174864
* LY-255582
* LY-2196044
* Methylnaltrexone
* Methylnaltrindole
* N-Benzylnaltrindole
* Nalmefene
* Nalorphine
* Naltrexone
* Naltriben
* Naltrindole
* Naloxone
* Naringenin
* Noribogaine
* Pawhuskin A
* Quadazocine
* SDM25N
* SoRI-9409
* Taxifolin
* Thienorphine

κ-opioid
(KOR)|

| Agonists|

* 3CS-nalmefene
* 6'-GNTI
* 8-CAC
* 18-MC
* 14-Methoxymetopon
* β-Chlornaltrexamine
* β-Funaltrexamine
* Adrenorphin (metorphamide)
* Akuammicine
* Alazocine (SKF-10047)
* Allomatrine
* Apadoline
* Asimadoline
* BAM-12P
* BAM-18P
* BAM-22P
* Big dynorphin
* Bremazocine
* BRL-52537
* Butorphan
* Butorphanol
* BW373U86
* Cebranopadol
* Ciprefadol
* CR665
* Cyclazocine
* Cyclorphan
* Cyprenorphine
* Desmetramadol (desmethyltramadol)
* Diamorphine (heroin)
* Diacetylnalorphine
* Difelikefalin
* Dihydroetorphine
* Dihydromorphine
* Dinalbuphine sebacate
* Diprenorphine
* Dynorphin A
* Dynorphin B (rimorphin)
* Eluxadoline
* Enadoline
* Eptazocine
* Erinacine E
* Ethylketazocine
* Etorphine
* Fedotozine
* Fentanyl
* Gemazocine
* GR-89696
* GR-103545
* Hemorphin-4
* Herkinorin
* HS665
* Hydromorphone
* HZ-2
* Ibogaine
* ICI-199,441
* ICI-204,448
* Ketamine
* Ketazocine
* Laudanosine
* Leumorphin (dynorphin B-29)
* Levallorphan
* Levomethorphan
* Levorphanol
* Lexanopadol
* Lofentanil
* LPK-26
* Lufuradom
* Matrine
* MB-1C-OH
* Menthol
* Metazocine
* Metkefamide
* Mianserin
* Mirtazapine
* Morphine
* Moxazocine
* MR-2034
* N-MPPP
* Nalbuphine
* NalBzOH
* Nalfurafine
* Nalmefene
* Nalodeine (N-allylnorcodeine)
* Nalorphine
* Naltriben
* Niravoline
* Norbuprenorphine
* Norbuprenorphine-3-glucuronide
* Noribogaine
* Norketamine
* Oripavine
* Oxa-noribogaine
* Oxilorphan
* Oxycodone
* Pentazocine
* Pethidine (meperidine)
* Phenazocine
* Proxorphan
* Racemethorphan
* Racemorphan
* RB-64
* Salvinorin A (salvia)
* Salvinorin B ethoxymethyl ether
* Salvinorin B methoxymethyl ether
* Samidorphan
* Spiradoline (U-62066)
* TH-030418
* Thienorphine
* Tifluadom
* Tricyclic antidepressants (e.g., amitriptyline, desipramine, imipramine, nortriptyline)
* U-50488
* U-54494A
* U-69593
* Xorphanol

|

Antagonists|

* 4′-Hydroxyflavanone
* 4',7-Dihydroxyflavone
* 5'-GNTI
* 6'-GNTI
* 6β-Naltrexol
* 6β-Naltrexol-d4
* β-Chlornaltrexamine
* Buprenorphine/samidorphan
* Amentoflavone
* ANTI
* Apigenin
* Arodyne
* AT-076
* Aticaprant
* Axelopran
* AZ-MTAB
* Binaltorphimine
* BU09059
* Buprenorphine
* Catechin
* Catechin gallate
* CERC-501 (LY-2456302)
* Clocinnamox
* CVL-354
* Cyclofoxy
* Dezocine
* DIPPA
* EGC
* ECG
* Epicatechin
* Hyperoside
* JDTic
* LY-255582
* LY-2196044
* LY-2444296
* LY-2459989
* LY-2795050
* MeJDTic
* Methylnaltrexone
* ML190
* ML350
* MR-2266
* N-Fluoropropyl-JDTic
* Naloxone
* Naltrexone
* Naltrindole
* Naringenin
* Navacaprant
* Norbinaltorphimine
* Noribogaine
* Pawhuskin A
* PF-4455242
* RB-64
* Quadazocine
* Taxifolin
* UPHIT
* Zyklophin

Nociceptin
(NOP)|

| Agonists|

* (Arg14,Lys15)Nociceptin
* ((pF)Phe4)Nociceptin(1-13)NH2
* (Phe1Ψ(CH2-NH)Gly2)Nociceptin(1-13)NH2
* Ac-RYYRWK-NH2
* Ac-RYYRIK-NH2
* BU08070
* Buprenorphine
* Cebranopadol
* Dihydroetorphine
* Etorphine
* JNJ-19385899
* Levomethorphan
* Levorphanol
* Lexanopadol
* MCOPPB
* MT-7716
* NNC 63-0532
* Nociceptin (orphanin FQ)
* Nociceptin (1-11)
* Nociceptin (1-13)NH2
* Norbuprenorphine
* Racemethorphan
* Racemorphan
* Ro64-6198
* Ro65-6570
* SCH-221510
* SCH-486757
* SR-8993
* SR-16435
* Sunobinop (S-117957)
* TH-030418

|

Antagonists|

* (Nphe1)Nociceptin(1-13)NH2
* AT-076
* BAN-ORL-24
* BTRX-246040 (LY-2940094)
* J-113397
* JTC-801
* NalBzOH
* Nociceptin (1-7)
* Nocistatin
* SB-612111
* SR-16430
* Thienorphine
* Trap-101
* UFP-101

Others|

* Enkephalinase inhibitors: Amastatin
* BL-2401
* Candoxatril
* D-Phenylalanine
* Dexecadotril (retorphan)
* Ecadotril (sinorphan)
* Kelatorphan
* Racecadotril (acetorphan)
* RB-101
* RB-120
* RB-3007
* Opiorphan
* Selank
* Semax
* Spinorphin
* Thiorphan
* Tynorphin
* Ubenimex (bestatin)

* Propeptides: β-Lipotropin (proendorphin)
* Prodynorphin
* Proenkephalin
* Pronociceptin
* Proopiomelanocortin (POMC)

* Others: Kyotorphin (met-enkephalin releaser/degradation stabilizer)

* v
* t
* e

Convulsants

GABA receptor antagonists|

* Bicuculline
* Bicyclic phosphates (TBPS, TBPO, IPTBO)
* BIDN
* Chlorophenylsilatrane
* Cicutoxin
* Cloflubicyne
* Coriamyrtin
* Dihydropicrotoxinin
* DMCM
* EBOB
* Endosulfan
* FG-7142
* Fipronil
* Flurothyl
* Gabazine
* Oenanthotoxin
* Pentylenetetrazol
* Phenylsilatrane
* Picrotoxin
* p-CN-TBOB
* p-NCS-TBOB
* RDX
* TBOB
* Tetramethylenedisulfotetramine
* Thujone
* Trimethylolpropane phosphite
* Tutin

GABA synthesis inhibitors|

* 3-Mercaptopropionic acid
* 4-Deoxypyridoxine
* Allylglycine
* Crimidine
* Decaborane
* Ginkgotoxin
* Isoniazid
* Pentaborane
* Thiocarbohydrazide
* Toxopyrimidine

Glycine receptor antagonists|

* Coriamyrtin
* Dendrobine
* Picrotoxin
* Strychnine
* Tutin

Glutamate receptor agonists|

* AMPA
* Domoic acid
* Kainic acid
* NMDA
* Quisqualic acid
* Tetrazolylglycine

Convulsant barbiturates|

* CHEB
* Diberal (DMBB)
* McN-481

Other|

* 2,2,3,3-Tetrafluoropropyl trifluoromethyl ether
* Bromocamphor
* Camphor
* FAZ-4
* Fluoroethyl fluoroacetate
* MC-2973
* Methionine sulfoximine
* Methyl fluoroacetate
* Nitrocyclohexane
* Thebaine

Authority control databases: National |

* Germany

|

*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[AU]: Australia
*[BR]: Brazil
*[CA]: Canada
*[UK]: United Kingdom
*[US]: United States
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template
*[GlyR]: Glycine receptor
*[NMDAR]: N-Methyl-D-aspartate receptor
*[GlyT1]: Glycine transporter 1
*[GlyT2]: Glycine transporter 2