This is a list of opioids, opioid antagonists and inverse agonists.

Opium and poppy straw derivatives

Crude opiate extracts whole opium products

B&O Supprettes Diascordium Dover's powder Kendal Black Drop Laudanum Mithridate Opium Polish heroin (Compote, Kompot) Paregoric Poppy straw concentrate Poppy tea Smoking opium Theriac

Natural opiates

Opium alkaloids

Codeine Morphine Oripavine Pseudomorphine Thebaine

Morphides Codeine Morphine Oripavine Pseudomorphine Thebaine

Alkaloid salts mixtures

Pantopon Papaveretum (Omnopon) Tetrapon

Semisynthetics including Bentley compounds

Morphine family

14-Hydroxymorphine ChemIndex CAS Registry Number 3371-56-0 2,4-Dinitrophenylmorphine 6-Methyldihydromorphine ChemIndex CAS Registry Number 509-56-8 6-Methylenedihydrodesoxymorphine 6-Acetyldihydromorphine ChemIndex CAS Registry Number 63715-94-6 Azidomorphine Chlornaltrexamine Chloroxymorphamine NCBI PubChem SID 750205 Desomorphine (dihydrodesoxymorphine) Dihydromorphine Ethyldihydromorphine chembase cbid_346222 Hydromorphinol Methyldesorphine Morphine methylbromide N-Phenethylnordesomorphine N-Phenethyl-14-ethoxymetopon N-Phenethylnormorphine 6-Nicotinoyldihydromorphine (metabolite of nicodicodeine) RAM-378 Ro4-1539

Morphine family Azidomorphine Chlornaltrexamine Chloroxymorphamine Dihydromorphine Ethyldihydromorphine Hydromorphinol Methyldesorphine RAM-378

3,6-diesters of morphine

Acetylpropionylmorphine 3,6-Dibutanoylmorphine Diacetyldihydromorphine (dihydroheroin, acetylmorphinol) Dibutyrylmorphine  Dibenzoylmorphine (first designer drug) Diformylmorphine  Dipropanoylmorphine Heroin (diacetylmorphine) Nicomorphine

3,6-diesters of morphine Acetylpropionylmorphine3,6-Dibutanoylmorphine Dibutyrylmorphine Dibenzoylmorphine Diformylmorphine Dipropanoylmorphine Nicomorphine

Codeine-dionine family

6-Monoacetylcodeine Benzylmorphine Codeine methylbromide Desocodeine  Dimethylmorphine (6-O-Methylcodeine)  Ethyldihydromorphine  Methyldihydromorphine (dihydroheterocodeine) Ethylmorphine (dionine) Heterocodeine Isocodeine  Pholcodine (morpholinylethylmorphine) Myrophine Thebacon Transisocodeine 

Codeine-dionine family Benzylmorphine Desocodeine Dimethylmorphine(6-O-Methylcodeine) Ethyldihydromorphine Methyldihydromorphine(dihydroheterocodeine) Heterocodeine Isocodeine Pholcodine Myrophine Transisocodeine

Morphinones and morphols

14-Cinnamoyloxycodeinone 14-Ethoxymetopon 14-Methoxymetopon 14-Phenylpropoxymetopon 3-Acetyloxymorphone 3,14-Diacetyloxymorphone 7-Spiroindanyloxymorphone 8,14-Dihydroxydihydromorphinone  Acetylcodone  Acetylmorphone α-hydrocodol  (=dihydrocodeine, ) Benzhydrocodone Bromoisopropropyldihydromorphinone cas? Codeinone Codoxime Conorfone (codorphone) IBNtxA Thebacon (acetyldihydrocodeinone, dihydrocodeinone enol acetate) Hydrocodone Hydromorphone Hydroxycodeine  Metopon (=methyldihydromorphinone) Morphenol  Morphinone Morphol  N-Phenethyl-14-ethoxymetopon Noroxymorphone Oxycodone Oxymorphol Oxymorphone Pentamorphone Semorphone 14-Hydroxycodeine

Morphinones and morphols 14-Cinnamoyloxycodeinone 14-Ethoxymetopon 14-Methoxymetopon 14-Phenylpropoxymetopon 7-Spiroindanyloxymorphone 8,14-Dihydroxydihydromorphinone Acetylcodone Acetylmorphone α-hydrocodol(Dihydrocodeine) Bromoisopropropyldihydromorphinone Codeinone Codorphone Codol(Codeine Phosphate) Codoxime IBNtxA Thebacon Hydrocodone Hydromorphone Hydroxycodeine Morphenol Morphinone Morphol N-Phenethyl-14-ethoxymetopon Oxycodone Oxymorphol Oxymorphone Pentamorphone Semorphone

Morphides

α-Chlorocodide (= chlorocodide)  β-Chlorocodide  α-Chloromorphide (= chloromorphide) Bromocodide  Bromomorphide  Chlorodihydrocodide  Chloromorphide Codide 

Morphides α-chlorocodide β-chlorocodide Bromomorphide Chlorodihydrocodide. Chloromorphide Codide

Dihydrocodeine series

14-Hydroxydihydrocodeine Acetyldihydrocodeine Dihydrocodeine Dihydrodesoxycodeine (desocodeine)  Dihydroisocodeine  Nicocodeine Nicodicodeine

Morphides 14-Hydroxydihydrocodeine Acetyldihydrocodeine Dihydrocodeine Dihydrodesoxycodeine Dihydroisocodeine Nicocodeine Nicodicodeine

Nitrogen morphine derivatives

1-Nitrocodeine cas? Codeine-N-oxide  Morphine-N-oxide

Morphides 1-Nitrocodeine Codeine-N-oxide Morphine-N-oxide

Hydrazones

Oxymorphazone

Hydrazones Oxymorphazone

Halogenated morphine derivatives

1-Bromocodeine  1-Chlorocodeine  1-Iodomorphine

Other open chain opioids 1-Bromocodeine 1-Chlorocodeine 1-Iodomorphine

Active opiate metabolites

Codeine-6-glucuronide  Codeine-N-oxide (genocodeine) Heroin-7,8-oxide  Morphine-6-glucuronide 3-Monoacetylmorphine 6-Monoacetylmorphine Morphine-N-oxide (genomorphine) Naltrexol  Norcodeine  Normorphine

Active opiate metabolites Naltrexol Norcodeine Normorphine

Morphinans

Morphinan series

3-Hydroxymorphinan  4-Chlorophenylpyridomorphinan  Cyclorphan Levargorphan  Levorphanol Levophenacylmorphan Levomethorphan Methorphan (racemethorphan) Morphanol (racemorphanol) Norlevorphanol N-Methylmorphinan  Oxilorphan Phenomorphan Proxorphan Ro4-1539 Stephodeline  Xorphanol

Other morphinans 4-chlorophenylpyridomorphinan Cyclorphan Dextrallorphan Levargorphan Levophenacylmorphan Levomethorphan Norlevorphanol N-Methylmorphinan Oxilorphan Phenomorphan Dextromethorphan levomethorphan Morphanol Ro4-1539 Stephodeline Xorphanol

Others

1-Nitroaknadinine * 14-episinomenine  5,6-Dihydronorsalutaridine  6-Keto Nalbuphine  Aknadinine  Butorphanol Cephakicine  Cephasamine  Cyprodime Drotebanol Fenfangjine G  Ketorfanol Nalbuphine Nalbuphone Tannagine

Other Morphinans 1-Nitroaknadinine 14-episinomenine 5,6-Dihydronorsalutaridine 6-Keto Nalbuphine Aknadinine Butorphanol Cephakicine Cephasamine Cyprodime Drotebanol Fenfangjine G Nalbuphine Sinococuline Sinomenine Tannagine

Benzomorphans

5,9 alpha-diethyl-2-hydroxybenzomorphan (5,9-DEHB)  8-Carboxamidocyclazocine (8-CAC) Alazocine Anazocine  Bremazocine Butinazocine  Carbazocine  Cogazocine Cyclazocine Dezocine Eptazocine Etazocine  Ethylketazocine  Fedotozine  Fluorophen  Gemazocine  Ibazocine  Ketazocine Metazocine Moxazocine  Pentazocine Phenazocine Quadazocine  SKF-10047 Tonazocine Volazocine Zenazocine

Benzomorphans 8-Carboxamidocyclazocine Alazocine Anazocine Bremazocine Butinazocine Carbazocine Cogazocine Cyclazocine Dezocine Eptazocine Etazocine Ethylketocyclazocine Fedotozine Fluorophen Gemazocine Ibazocine Ketazocine Metazocine Moxazocine Pentazocine Phenazocine Quadazocine Tonazocine Volazocine Zenazocine

4-Phenylpiperidines

Pethidines (meperidines)

4-Fluoropethidine Allylnorpethidine Anileridine Benzethidine Carperidine Difenoxin Diphenoxylate Etoxeridine (carbetidine) Furethidine Hydroxypethidine (bemidone) Morpheridine Meperidine-N-oxide  Oxpheneridine (carbamethidine) Pethidine (meperidine) Pethidine intermediate A Pethidine intermediate B (norpethidine) Pethidine intermediate C (pethidinic acid) Pheneridine Phenoperidine Piminodine Properidine (ipropethidine) Sameridine

Pethidines (meperidines) 8-Carboxamidocyclazocine Allylnorpethidine Anileridine Benzethidine Carperidine Difenoxin Diphenoxylate Etoxeridine Furethidine Hydroxypethidine Morpheridine Meperidine-N-oxide Oxpheneridine Pethidine Pethidine intermediate A Pethidine intermediate B Pethidine intermediate C Pheneridine Phenoperidine Piminodine Sameridine

Prodines

Allylprodine (α/β)-Meprodine Desmethylprodine (MPPP) PEPAP (α/β)-Prodine Prosidol Trimeperidine (promedol)

Prodines (α/β)-Meprodine Desmethylprodine (MPPP) PEPAP Prodine Prosidol Prosidol

Ketobemidones

Acetoxyketobemidone Droxypropine Ketobemidone Methylketobemidone Propylketobemidone

Ketobemidones Droxypropine Ketobemidone Methylketobemidone Propylketobemidone

Others

Alvimopan Loperamide LS-115509 Picenadol

Other phenylpiperidines Loperamide LS-115509 Picenadol

Open chain opioids

Amidones

Dextromethadone  Dipipanone Dipyanone Isomethadone Levoisomethadone  Levomethadone  Methadone Methadone intermediate  Normethadone Norpipanone  Phenadoxone (heptazone)

Amidones Dextromethadone Dipipanone Isomethadone Levoisomethadone Noracetylmethadol Levomethadone Methadone Normethadone Norpipanone Phenadoxone Pipidone

Methadols

Acetylmethadol  Alphaacetylmethadol  Alphamethadol  Betacetylmethadol  Betamethadol  Dimepheptanol (racemethadol) Isomethadol  Levacetylmethadol Noracymethadol

Other open chain opioids Alphaacetylmethadol Dimepheptanol Levacetylmethadol Noracetylmethadol

Moramides

Desmethylmoramide  Dextromoramide Levomoramide Moramide intermediate  Racemoramide

Other open chain opioids Desmethylmoramide Dextromoramide Levomoramide Moramide intermediate Racemoramide

Thiambutenes

Diethylthiambutene Dimethylthiambutene Ethylmethylthiambutene Piperidylthiambutene Pyrrolidinylthiambutene Thiambutene

Thiambutenes Diethylthiambutene Dimethylthiambutene Ethylmethylthiambutene Piperidylthiambutene Thiambutene Tipepidine

Phenalkoxams

Dextropropoxyphene (propoxyphene) Dimenoxadol Dioxaphetyl butyrate Levopropoxyphene Norpropoxyphene Pyrroliphene

Phenalkoxams Dextropropoxyphene (propoxyphene) Dimenoxadol Dioxaphetyl butyrate Levopropoxyphene Norpropoxyphene

Ampromides

Diampromide Phenampromide Propiram

Ampromides Diampromide Phenampromide Propiram

Others

Embutramide IC-26 Isoaminile Lefetamine R-4066

Other open chain opioids Embutramide IC-26 Isoaminile Lefetamine R-4066

Anilidopiperidines

3-Allylfentanyl 3-Methylfentanyl 3-Methylthiofentanyl 4-Phenylfentanyl Alfentanil α-Methylacetylfentanyl α-Methylfentanyl α-Methylthiofentanyl Benzylfentanyl    β-hydroxyfentanyl β-hydroxythiofentanyl β-Methylfentanyl Brifentanil Butyrfentanyl Carfentanil Fentanyl Lofentanil N-Methylcarfentanil Mirfentanil Ocfentanil Ohmefentanyl Parafluorofentanyl Phenaridine R-30490 Remifentanil Sufentanil Thenylfentanyl 

Thiofentanyl Trefentanil

Anilidopiperidines Alfentanil Alphamethylacetylfentanyl Alphamethylfentanyl Alpha-methylthiofentanyl Benzylfentanyl Betahydroxyfentanyl Betahydroxythiofentanyl Betamethylfentanyl Brifentanil Carfentanil Fentanyl Lofentanil Mirfentanil Ocfentanil Ohmefentanyl Parafluorofentanyl Phenaridine Remifentanil Sufentanil Thenylfentanyl Thiofentanyl Trefentanil

Oripavine derivatives

7-PET Acetorphine Alletorphine (N-allyl-noretorphine) BU-48 Buprenorphine Buprenorphine-3-glucuronide Cyprenorphine Dihydroetorphine Etorphine Homprenorphine 18,19-Dehydrobuprenorphine (HS-599)  N-cyclopropylmethylnoretorphine  Nepenthone  Norbuprenorphine Norbuprenorphine-3-glucuronide Thevinone  Thienorphine TH-030418

Oripavine derivatives 7-PET Acetorphine Alletorphine BU-48 Buprenorphine Cyprenorphine Dihydroetorphine Etorphine Homprenorphine Nepenthone Norbuprenorphine Thevinone Thienorphine

Phenazepanes

Ethoheptazine Meptazinol Metheptazine Metethoheptazine Proheptazine

Phenazepanes Ethoheptazine Meptazinol Metheptazine Metethoheptazine Proheptazine

Pirinitramides

Bezitramide Piritramide

Pirinitramides Bezitramide Piritramide

Benzimidazoles

Clonitazene Etonitazene Isotonitazene Metonitazene

Benzimidazoles Clonitazene Etonitazene Isotonitazene Metonitazene Nitazene: R = hydrogen

Indoles

18-Methoxycoronaridine 7-Acetoxymitragynine  7-Hydroxymitragynine ψ-Akuammigine Akuammidine  Akuammine Coronaridine Eseroline Hodgkinsine Ibogaine Mitragynine Mitragynine pseudoindoxyl MGM-15 Noribogaine Pericine Pseudoakuammigine

Indoles 18-Methoxycoronaridine 7-Acetoxymitragynine 7-Hydroxymitragynine Akuammidine Akuammine Eseroline Hodgkinsine Mitragynine Pericine Pseudoakuammigine

Beta-Amino Ketones

3-(dimethylamino)-2,2-dimethyl-1-phenylpropan-1-one

Indoles3-(dimethylamino)-2,2-dimethyl-1-phenylpropan-1-one (Beta-amine ketone 'compound 29')