Tetracyclic antidepressants

Not to be confused with Tetracycline.

Tetracyclic antidepressants (TeCAs) are a class of drugs used primarily as antidepressants that were first introduced in the 1970s. They are named after their chemical structure which contains four rings of atoms and are closely related to the tricyclic antidepressants (TCAs) which contain three rings of atoms.

1 List of TeCAs
2 Pharmacology
- 2.1 Binding profiles
3 See also
4 References

List of TeCAs

The TeCAs include the following agents:

Pharmaceutical drugs
- Amoxapine (Asendin) — sometimes classed as a secondary amine tricyclic antidepressant; active metabolite of the typical antipsychotic, loxapine.
- Maprotiline (Deprilept, Ludiomil, Psymion)
- Mazindol (Mazanor, Sanorex)
- Mianserin (Bolvidon, Norval, Tolvon)
- Mirtazapine (Remeron, Avanza, Zispin)
- Setiptiline (Tecipul)
- Trazodone (Desyrel)
Research chemicals
- Aptazapine (CGS-7525A)
- Ciclazindol (WY-23,409)
- Esmirtazapine (ORG-50,081)
- Oxaprotiline
- Vabicaserin (SCA-136) is a selective 5-HT_2C full agonist that was being investigated as an antidepressant and atypical antipsychotic and was later dropped by its developer, Wyeth.

Pharmacology

Binding profiles

The affinities (K_d (nM)) of a selection of TeCAs have been compared below at an assortment of binding sites:^[1]^[2]^[3]^[4]^[5]^[6]^[7]^[8]^[9]

Compound	SERT	NET	DAT	5-HT_1A	5-HT_2A	α₁	α₂	D₂	H₁	mACh
Amoxapine	58	16.0	4,310	220	0.6	50	2,600	160	25	1,000
Loxapine	2,400	380	9,000	2,900	1.7	28	2,400	70	4.9	450
Maprotiline	5,800	11.1	1,000	12,000	120	91	9,400	350	2.0	560
Mianserin	4,000	101	9,400	190	4.3	74	4.3	2,197	1.7	820
Mirtazapine	>100,000	1,640	>100,000	?	69	500	19	>5,454	0.1	670
Oxaprotiline	3,900	4.9	4,340	67,000	2,400	620	42,000	?	21	2,900

The selected ligands act as antagonists (or inverse agonists depending on the site in question) at all receptors listed and as inhibitors of all transporters listed.

References

Antidepressants (N06A)

Specific reuptake inhibitors (RIs), enhancers (REs), and releasing agents (RAs)

Selective serotonin reuptake inhibitors (SSRIs)	Alaproclate Citalopram Escitalopram Femoxetine Fluoxetine^# Fluvoxamine Indalpine Ifoxetine Litoxetine Omiloxetine Panuramine Paroxetine Pirandamine Seproxetine Sertraline Zimelidine^‡

Serotonin–norepinephrine reuptake inhibitors (SNRIs)	Clovoxamine Desvenlafaxine Duloxetine Levomilnacipran Eclanamine Milnacipran Sibutramine Venlafaxine

Serotonin–norepinephrine–dopamine reuptake inhibitors (SNDRIs)	Amitifadine Bicifadine Brasofensine BTS-74,398 Cocaine Diclofensine DOV-102,677 DOV-216,303 EXP-561 Fezolamine JNJ-7925476 NS-2359 PRC200-SS Pridefine SEP-225,289 SEP-227,162 Tesofensine

Norepinephrine reuptake inhibitors (NRIs)	Amedalin Atomoxetine/Tomoxetine Binedaline Ciclazindol Daledalin Edivoxetine Esreboxetine Lortalamine Maprotiline Mazindol Nisoxetine Reboxetine Talopram Talsupram Tandamine Viloxazine

Dopamine reuptake inhibitors (DRIs)	Medifoxamine Vanoxerine

Norepinephrine-dopamine reuptake inhibitors (NDRIs)	Amineptine Bupropion/Amfebutamone Cilobamine Manifaxine Methylphenidate Nomifensine Radafaxine Tametraline

Norepinephrine-dopamine releasing agents (NDRAs)	Amphetamine Befuraline Lisdexamfetamine Methamphetamine Phenethylamine Piberaline Tranylcypromine

Serotonin-norepinephrine-dopamine releasing agents (SNDRAs)	4-Methyl-αMT αET/Etryptamine αMT/Metryptamine

Selective serotonin reuptake enhancers (SSREs)	Tianeptine

Others	Indeloxazine Teniloxazine Tramadol Viqualine

Receptor antagonists and/or reuptake inhibitors

Serotonin antagonists and reuptake inhibitors (SARIs)	Etoperidone Lubazodone Nefazodone Mepiprazole Trazodone

Noradrenergic and specific serotonergic antidepressants (NaSSAs)	Aptazapine Esmirtazapine Mianserin Mirtazapine Setiptiline/Teciptiline

Norepinephrine-dopamine disinhibitors (NDDIs)	Agomelatine

Serotonin modulators and stimulators (SMSs)	Vortioxetine

Others	Tedatioxetine Vilazodone

Heterocyclic antidepressants (bi-, tri-, and tetracyclics)

Bicyclics	Tiazesim Tofenacin

Tricyclics	Amezepine Amineptine Amitriptyline^# Amitriptylinoxide Azepindole Butriptyline Cianopramine Clomipramine Cotriptyline Cyanodothiepin Demexiptiline Depramine/Balipramine Desipramine Dibenzepin Dimetacrine Dosulepin/Dothiepin Doxepin Enprazepine Fluotracen Hepzidine Homopipramol Imipramine Imipraminoxide Intriptyline Iprindole Ketipramine Litracen Lofepramine Losindole Mariptiline Melitracen Metapramine Mezepine Naranol Nitroxazepine Nortriptyline Noxiptiline Octriptyline Opipramol Pipofezine Propizepine Protriptyline Quinupramine Tampramine Tianeptine Tienopramine Trimipramine

Tetracyclics	Amoxapine Aptazapine Azipramine Ciclazindol Ciclopramine Esmirtazapine Maprotiline Mazindol Mianserin Mirtazapine Oxaprotiline Setiptiline/Teciptiline

Monoamine oxidase inhibitors (MAOIs)

Nonselective	Irreversible: Benmoxin Carbenzide Cimemoxin Domoxin Echinopsidine Iproclozide Iproniazid Isocarboxazid Mebanazine Metfendrazine Nialamide Octamoxin Phenelzine Pheniprazine Phenoxypropazine Pivalylbenzhydrazine Safrazine Tranylcypromine Reversible: Caroxazone Paraxazone Quercetin

MAO_A-Selective	Irreversible: Clorgiline Reversible: Amiflamine Bazinaprine Befloxatone Berberine Brofaromine Cimoxatone Esuprone Eprobemide Harmala Alkaloids (Harmine Harmaline Tetrahydroharmine Harman Norharman, etc) Methylene Blue Metralindole Minaprine Moclobemide Pirlindole Sercloremine Tetrindole Toloxatone Tyrima

MAO_B-Selective	Irreversible: Ladostigil Mofegiline Pargyline Rasagiline Selegiline Reversible: Lazabemide Milacemide

Azapirones and other 5-HT_1A receptor agonists

Alnespirone Aripiprazole Befiradol Buspirone Eptapirone Flesinoxan Flibanserin Gepirone Ipsapirone Oxaflozane Tandospirone Vilazodone Zalospirone

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

M: PSO/PSI

mepr

dsrd (o, p, m, p, a, d, s), sysi/epon, spvo

proc (eval/thrp), drug (N5A/5B/5C/6A/6B/6D)

Antipsychotics (neuroleptics) (N05A)

Typical

Benzamides: Levosulpiride; Nemonapride; Sulpiride; Sultopride; Tiapride; Veralipride

Butyrophenones: Azaperone; Benperidol; Bromperidol; Droperidol; Fluanisone; Haloperidol; Lenperone; Moperone; Pipamperone; Spiperone; Timiperone; Trifluperidol

Diphenylbutylpiperidines: Clopimozide; Fluspirilene; Penfluridol; Pimozide

Phenothiazines: Acepromazine; Acetophenazine; Butaperazine; Carphenazine; Chloracizine; Chlorproethazine; Chlorpromazine; Cyamemazine; Dixyrazine; Fluacizine; Fluphenazine; Levomepromazine/Methotrimeprazine; Mesoridazine; Perazine; Pericyazine; Perphenazine; Piperacetazine; Pipotiazine; Prochlorperazine; Promazine; Promethazine; Propiomazine; Sulforidazine; Thiethylperazine; Thiopropazate; Thioproperazine; Thioridazine; Trifluoperazine; Triflupromazine

Thioxanthenes: Chlorprothixene; Clopenthixol; Flupentixol; Thiothixene; Zuclopenthixol

Tricyclics: Butaclamol; Fluotracen; Loxapine; Trimipramine

Others: Prothipendyl

Atypical

Benzamides: Amisulpride; Remoxipride‡

Butyrophenones: Cinuperone; Melperone; Setoperone

Benzo(iso)oxazole piperidines: Iloperidone; Ocaperidone; Paliperidone; Risperidone

Benzo(iso)thiazole piperazines: Lurasidone; Perospirone; Revospirone; Tiospirone; Ziprasidone

Diphenylbutylpiperazines: Amperozide

Phenylpiperazines: Aripiprazole; Bifeprunox; Brexpiprazole^†; Elopiprazole; Umespirone

Tricyclics: Amoxapine; Asenapine; Carpipramine; Clocapramine; Clorotepine; Clotiapine; Clozapine; Fluperlapine; Gevotroline; Metitepine; Mosapramine; NDMC; Olanzapine; Piquindone; Quetiapine; Tenilapine; Zotepine

Others: Blonanserin; Cariprazine; Molindone; Pimavanserin; Roxindole; Sarizotan; Sertindole; Spiramide; Zicronapine^†

Others

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

M: PSO/PSI

mepr

dsrd (o, p, m, p, a, d, s), sysi/epon, spvo

proc (eval/thrp), drug (N5A/5B/5C/6A/6B/6D)

Antiemetics (A04)

5-HT3 Serotonin ion
channel antagonists

5-HT Serotonin G-protien
receptor antagonists

CB₁ Agonists
(Cannabinoids)

D₂/D₃ Antagonists

H₁ antagonists
(Antihistamines)

mACh antagonists
(Anticholinergics)

NK₁ Antagonists

Others

M: DIG

anat (t, g, p)/phys/devp/enzy

noco/cong/tumr, sysi/epon

proc, drug (A2A/2B/3/4/5/6/7/14/16), blte

v t e Hypnotics/sedatives (N05C)

GABA_A agonists/PAMs	Alcohols: 2M2B • Chloralodol • Ethanol (Alcohol) • Ethchlorvynol • Methylpentynol • Trichloroethanol Barbiturates: Allobarbital • Amobarbital • Aprobarbital • Barbital • Butabarbital • Butobarbital • Cyclobarbital • Ethallobarbital • Heptabarb • Hexobarbital • Mephobarbital • Methohexital • Pentobarbital • Phenallymal • Phenobarbital • Propylbarbital • Proxibarbal • Reposal • Secobarbital • Talbutal • Thiamylal • Thiopental • Vinbarbital • Vinylbital Benzodiazepines: Brotizolam • Cinolazepam • Climazolam • Doxefazepam • Estazolam • Flunitrazepam • Flurazepam • Flutoprazepam • Haloxazolam • Loprazolam • Lormetazepam • Midazolam • Nimetazepam • Nitrazepam • Quazepam • Temazepam • Triazolam Carbamates: Carisoprodol • Ethinamate • Hexapropymate • Meprobamate • Methocarbamol • Procymate • Tybamate Neuroactive Steroids: Acebrochol • Allopregnanolone • Alphadolone • Alphaxolone • Eltanolone • Ganaxolone • Hydroxydione • Minaxolone • Org 20599 • Org 21465 • Tetrahydrodeoxycorticosterone Nonbenzodiazepines: CL-218,872 • Eszopiclone • Indiplon • JM-1232 • Lirequinil • Necopidem • Pazinaclone • ROD-188 • Saripidem • Suproclone • Suriclone • SX-3228 • U-89843A • U-90042 • Zaleplon • Zolpidem • Zopiclone Phenols: Fospropofol • Propofol Piperidinediones: Glutethimide • Methyprylon • Pyrithyldione • Piperidione Quinazolinones: Afloqualone • Cloroqualone • Diproqualone • Etaqualone • Mebroqualone • Mecloqualone • Methaqualone • Methylmethaqualone • Nitromethaqualone • SL-164 Volatiles/gases: • Acetophenone • Acetylglycinamide chloral hydrate • Centalun • Chloral hydrate • Paraldehyde Others: Bromide (Lithium bromide, Potassium bromide, Sodium bromide) • Chloralose • Clomethiazole • Dichloralphenazone • Etomidate • Gaboxadol • Loreclezole • Metomidate • Org 25435 • Petrichloral • Sulfonmethane • Triclofos • Valerenic acid (Valerian)

GABA_B agonists	1,4-Butanediol • Aceburic acid • GABOB • GHB (Sodium oxybate) • GBL • GVL

H₁ inverse agonists	Antihistamines: Captodiame • Cyproheptadine • Diphenhydramine • Doxylamine • Hydroxyzine • Methapyrilene • Pheniramine • Promethazine • Propiomazine Antidepressants: Tricyclic antidepressants (Amitriptyline, Doxepin, Trimipramine, etc.) • Tetracyclic antidepressants (Mianserin, Mirtazapine, etc.) Antipsychotics: Typical antipsychotics (Chlorpromazine, Thioridazine, etc.) • Atypical antipsychotics (Olanzapine, Quetiapine, Risperidone, etc.)

α₁-Adrenergic antagonists	Antidepressants: Serotonin antagonists and reuptake inhibitors (Trazodone) • Tricyclic antidepressants (Amitriptyline, Doxepin, Trimipramine, etc.) • Tetracyclic antidepressants (Mianserin) Antipsychotics: Typical antipsychotics (Chlorpromazine, Thioridazine, etc.) • Atypical antipsychotics (Olanzapine, Quetiapine, Risperidone, etc.) Others: Niaprazine

α₂-Adrenergic agonists	4-NEMD • Clonidine • Detomidine • Dexmedetomidine • Lofexidine • Medetomidine • Romifidine • Tizanidine • Xylazine

5-HT_2A antagonists	Antidepressants: Serotonin antagonists and reuptake inhibitors (Trazodone) • Tricyclic antidepressants (Amitriptyline, Doxepin, Trimipramine, etc.) • Tetracyclic antidepressants (Mianserin, Mirtazapine, etc.) Antipsychotics: Typical antipsychotics (Chlorpromazine, Thioridazine, etc.) • Atypical antipsychotics (Olanzapine, Quetiapine, Risperidone, etc.) Others: Eplivanserin • Niaprazine • Pruvanserin • Volinanserin

Melatonin agonists	Agomelatine • LY-156,735 • Melatonin • Ramelteon • Tasimelteon

Orexin antagonists	Almorexant • SB-334,867 • SB-408,124 • SB-649,868 • Suvorexant • TCS-OX2-29

Others	Acecarbromal • Apronal • Bromisoval • Cannabidiol (Cannabis) • Carbromal • Embutramide • Evoxine • Fenadiazole • Gabapentin • Kavalactones (Kava) • Mephenoxalone • Opioids (Oxycodone, Morphine (Opium), etc.) • Passion flower • Scopolamine (Mandrake) • UMB68 • Valnoctamide

v t e Stimulants (N06B)

Adamantanes	Adaphenoxate Adapromine Amantadine Bromantane Chlodantane Gludantane Memantine Midantane

Adenosine antagonists	8-Chlorotheophylline 8-Cyclopentyltheophylline 8-Phenyltheophylline Aminophylline Caffeine CGS-15943 Dimethazan Paraxanthine SCH-58261 Theobromine Theophylline

Alkylamines	Cyclopentamine Cypenamine Cyprodenate Heptaminol Isometheptene Methylhexaneamine Octodrine Propylhexedrine Tuaminoheptane

Ampakines	CX-516 CX-546 CX-614 CX-691 CX-717 IDRA-21 LY-404,187 LY-503,430 Nooglutyl Org 26576 PEPA S-18986 Sunifiram Unifiram

Arylcyclohexylamines	Benocyclidine Dieticyclidine Esketamine Eticyclidine Gacyclidine Ketamine Phencyclamine Phencyclidine Rolicyclidine Tenocyclidine Tiletamine

Benzazepines	6-Br-APB SKF-77434 SKF-81297 SKF-82958

Cholinergics	A-84,543 A-366,833 ABT-202 ABT-418 AR-R17779 Altinicline Anabasine Arecoline Cotinine Cytisine Dianicline Epibatidine Epiboxidine GTS-21 Ispronicline Nicotine PHA-543,613 PNU-120,596 PNU-282,987 Pozanicline Rivanicline Sazetidine A SIB-1553A SSR-180,711 TC-1698 TC-1827 TC-2216 TC-5619 Tebanicline UB-165 Varenicline WAY-317,538

Convulsants	Anatoxin-a Bicuculline DMCM Flurothyl Gabazine Pentetrazol Picrotoxin Strychnine Thujone

Eugeroics	Adrafinil Armodafinil CRL-40,941 JZ-IV-10 Modafinil

Oxazolines	4-Methylaminorex Aminorex Clominorex Cyclazodone Fenozolone Fluminorex Pemoline Thozalinone

Phenethylamines	1-(4-Methylphenyl)-2-aminobutane 1-Phenyl-2-(piperidin-1-yl)pentan-3-one 1-Methylamino-1-(3,4-methylenedioxyphenyl)propane 2-Fluoroamphetamine 2-Fluoromethamphetamine 2-OH-PEA 2-Phenyl-3-aminobutane 2-Phenyl-3-methylaminobutane 2,3-MDA 3-Fluoroamphetamine 3-Fluoroethamphetamine 3-Fluoromethcathinone 3-Methoxyamphetamine 3-Methylamphetamine 3,4-DMMC 4-BMC 4-Ethylamphetamine 4-FA 4-FMA 4-MA 4-MMA 4-MTA 6-FNE AL-1095 Alfetamine a-Ethylphenethylamine Amfecloral Amfepentorex Amfepramone Amidephrine 2-Amino-1,2-dihydronaphthalene 2-Aminoindane 5-(2-Aminopropyl)indole 2-Aminotetralin Amphetamine (Dextroamphetamine, Levoamphetamine) Amphetaminil Arbutamine β-Methylphenethylamine β-Phenylmethamphetamine Benfluorex Benzedrone Benzphetamine BDB BOH 3-Benzhydrylmorpholine BPAP Buphedrone Bupropion Butylone Camfetamine Cathine Cathinone Chlorphentermine Cilobamine Cinnamedrine Clenbuterol Clobenzorex Cloforex Clortermine Cypenamine D-Deprenyl Denopamine Dimethoxyamphetamine Dimethylamphetamine Dimethylcathinone Dobutamine DOPA (Dextrodopa, Levodopa) Dopamine Dopexamine Droxidopa EBDB Ephedrine Epinephrine Epinine Etafedrine Ethcathinone Ethylnorepinephrine Ethylone Etilamfetamine Etilefrine Famprofazone Fencamfamine Fencamine Fenethylline Fenfluramine (Dexfenfluramine, Levofenfluramine) Fenproporex Feprosidnine Flephedrone Fludorex Furfenorex Gepefrine Hexapradol HMMA Hordenine Hydroxyamphetamine 5-Iodo-2-aminoindane Ibopamine IMP Indanylamphetamine Iofetamine Isoetarine Isoethcathinone Isoprenaline L-Deprenyl (Selegiline) Lefetamine Lisdexamfetamine Lophophine MBDB MDA MDBU MDEA MDMA MDMPEA MDOH MDPR MDPEA Mefenorex Mephedrone Mephentermine Metanephrine Metaraminol Mesocarb Methamphetamine (Dextromethamphetamine, Levomethamphetamine) Methoxamine Methoxyphenamine MMA Methcathinone Methedrone Methoxyphenamine Methylone MMDA MMDMA MMMA N-Benzyl-1-phenethylamine N,N-Dimethylphenethylamine Naphthylamphetamine Nisoxetine Norepinephrine Norfenefrine Norfenfluramine Normetanephrine L-Norpseudoephedrine Octopamine Orciprenaline Ortetamine Oxilofrine PBA PCA PHA Pentorex Pentylone Phenatine Phenpromethamine Phentermine Phenylalanine Phenylephrine Phenylpropanolamine Pholedrine PIA PMA PMEA PMMA PPAP Phthalimidopropiophenone Prenylamine Propylamphetamine Pseudoephedrine Ropinirole Salbutamol (Levosalbutamol) Sibutramine Synephrine Theodrenaline Tiflorex Tranylcypromine Tyramine Tyrosine Xylopropamine Zylofuramine

Phenmetrazines	Fenbutrazate Fenmetramide G-130 Manifaxine Morazone Oxaflozane PD-128,907 Phendimetrazine Phenmetrazine 2-Phenyl-3,6-dimethylmorpholine Pseudophenmetrazine Radafaxine

Piperazines	2C-B-BZP BZP CM156 DBL-583 GBR-12783 GBR-12935 GBR-13069 GBR-13098 GBR-13119 MeOPP MBZP Vanoxerine

Piperidines	1-Benzyl-4-(2-(diphenylmethoxy)ethyl)piperidine 1-(3,4-Dichlorophenyl)-1-(piperidin-2-yl)butane 2-Benzylpiperidine 2-Methyl-3-phenylpiperidine 3,4-Dichloromethylphenidate 4-Benzylpiperidine 4-Methylmethylphenidate Desoxypipradrol Difemetorex Diphenylpyraline Ethylphenidate Methylnaphthidate Methylphenidate (Dexmethylphenidate) N-Methyl-3β-propyl-4β-(4-chlorophenyl)piperidine Nocaine Phacetoperane Pipradrol SCH-5472

Pyrrolidines	2-Diphenylmethylpyrrolidine a-PPP a-PBP a-PVP Diphenylprolinol MDPPP MDPBP MDPV MPBP MPHP MPPP MOPPP Naphyrone PEP Prolintane Pyrovalerone

Tropanes	3-CPMT 3'-Chloro-3a-(diphenylmethoxy)tropane 4-fluorotropacocaine 4'-Fluorococaine AHN-1055 Altropane (IACFT) Brasofensine CFT (WIN 35,428) β-CIT (RTI-55) Cocaethylene Cocaine Dichloropane (RTI-111) Difluoropine FE-β-CPPIT FP-β-CPPIT Ioflupane (¹²³I) Norcocaine PIT PTT RTI-31 RTI-32 RTI-51 RTI-105 RTI-112 RTI-113 RTI-117 RTI-120 RTI-121 (IPCIT) RTI-126 RTI-150 RTI-154 RTI-171 RTI-177 RTI-183 RTI-193 RTI-194 RTI-199 RTI-202 RTI-204 RTI-229 RTI-241 RTI-336 RTI-354 RTI-371 RTI-386 Salicylmethylecgonine Tesofensine Troparil (β-CPT, WIN 35,065-2) Tropoxane WF-23 WF-33 WF-60

Racetams	Oxiracetam Phenylpiracetam

Others	2-MDP 2-Phenylcyclohexylamine 3,3-Diphenylcyclobutanamine Amfonelic acid Amineptine Amiphenazole Atipamezole Atomoxetine Bemegride Benzydamine BTQ BTS 74,398 Ciclazindol Clofenciclan Cropropamide Crotetamide D-161 Diclofensine Dimethocaine Efaroxan Etamivan EXP-561 Fenpentadiol Gamfexine Gilutensin GSK1360707F GYKI-52895 Hexacyclonate Idazoxan Indanorex Indatraline JNJ-7925476 Lazabemide Leptacline Levopropylhexedrine Lomevactone LR-5182 Mazindol Meclofenoxate Medifoxamine Mefexamide Methastyridone Methiopropamine N-Methyl-3-phenylnorbornan-2-amine Nefopam Nikethamide Nomifensine O-2172 Oxaprotiline PNU-99,194 Propylhexedrine PRC200-SS Rasagiline Rauwolscine Rubidium chloride Setazindol Tametraline Tandamine Thiopropamine Trazium UH-232 Yohimbine

Adrenergics

Receptor ligands

α₁	Agonists: 5-FNE 6-FNE Amidephrine Anisodamine Anisodine Cirazoline Dipivefrine Dopamine Ephedrine Epinephrine Etilefrine Ethylnorepinephrine Indanidine Levonordefrin Metaraminol Methoxamine Methyldopa Midodrine Naphazoline Norepinephrine Octopamine Oxymetazoline Phenylephrine Phenylpropanolamine Pseudoephedrine Synephrine Tetrahydrozoline Antagonists: Abanoquil Adimolol Ajmalicine Alfuzosin Amosulalol Arotinolol Atiprosin Benoxathian Buflomedil Bunazosin Carvedilol CI-926 Corynanthine Dapiprazole DL-017 Domesticine Doxazosin Eugenodilol Fenspiride GYKI-12,743 GYKI-16,084 Hydroxyzine Indoramin Ketanserin L-765,314 Labetalol Mephendioxan Metazosin Monatepil Moxisylyte Naftopidil Nantenine Neldazosin Nicergoline Niguldipine Pelanserin Phendioxan Phenoxybenzamine Phentolamine Piperoxan Prazosin Quinazosin Ritanserin RS-97,078 SGB-1,534 Silodosin SL-89.0591 Spiperone Talipexole Tamsulosin Terazosin Tibalosin Tiodazosin Tipentosin Tolazoline Trimazosin Upidosin Urapidil Zolertine * Note that many TCAs, TeCAs, antipsychotics, ergolines, and some piperazines like buspirone and trazodone all antagonize α₁-adrenergic receptors as well, which contributes to their side effects such as orthostatic hypotension.

α₂	Agonists: (R)-3-Nitrobiphenyline 4-NEMD 6-FNE Amitraz Apraclonidine Brimonidine Cannabivarin Clonidine Detomidine Dexmedetomidine Dihydroergotamine Dipivefrine Dopamine Ephedrine Ergotamine Epinephrine Esproquin Etilefrine Ethylnorepinephrine Guanabenz Guanfacine Guanoxabenz Levonordefrin Lofexidine Medetomidine Methyldopa Mivazerol Naphazoline Norepinephrine Oxymetazoline Phenylpropanolamine Piperoxan Pseudoephedrine Rilmenidine Romifidine Talipexole Tetrahydrozoline Tizanidine Tolonidine Urapidil Xylazine Xylometazoline Antagonists: 1-PP Adimolol Aptazapine Atipamezole BRL-44408 Buflomedil Cirazoline Efaroxan Esmirtazapine Fenmetozole Fluparoxan GYKI-12,743 GYKI-16,084 Idazoxan Mianserin Mirtazapine MK-912 NAN-190 Olanzapine Phentolamine Phenoxybenzamine Piperoxan Piribedil Rauwolscine Rotigotine SB-269,970 Setiptiline Spiroxatrine Sunepitron Tolazoline Yohimbine * Note that many atypical antipsychotics and azapirones like buspirone (via metabolite 1-PP) antagonize α₂-adrenergic receptors as well.

β	Agonists: 2-FNE 5-FNE Amibegron Arbutamine Arformoterol Arotinolol BAAM Bambuterol Befunolol Bitolterol Broxaterol Buphenine Carbuterol Cimaterol Clenbuterol Denopamine Deterenol Dipivefrine Dobutamine Dopamine Dopexamine Ephedrine Epinephrine Etafedrine Etilefrine Ethylnorepinephrine Fenoterol Formoterol Hexoprenaline Higenamine Indacaterol Isoetarine Isoprenaline Isoxsuprine Levonordefrin Levosalbutamol Mabuterol Methoxyphenamine Methyldopa Mirabegron N-Isopropyloctopamine Norepinephrine Orciprenaline Oxyfedrine Phenylpropanolamine Pirbuterol Prenalterol Ractopamine Procaterol Pseudoephedrine Reproterol Rimiterol Ritodrine Salbutamol Salmeterol Solabegron Terbutaline Tretoquinol Tulobuterol Xamoterol Zilpaterol Zinterol Antagonists: Acebutolol Adaprolol Adimolol Afurolol Alprenolol Alprenoxime Amosulalol Ancarolol Arnolol Arotinolol Atenolol Befunolol Betaxolol Bevantolol Bisoprolol Bopindolol Bormetolol Bornaprolol Brefonalol Bucindolol Bucumolol Bufetolol Buftiralol Bufuralol Bunitrolol Bunolol Bupranolol Burocrolol Butaxamine Butidrine Butofilolol Capsinolol Carazolol Carpindolol Carteolol Carvedilol Celiprolol Cetamolol Cicloprolol Cinamolol Cloranolol Cyanopindolol Dalbraminol Dexpropranolol Diacetolol Dichloroisoprenaline Dihydroalprenolol Dilevalol Diprafenone Draquinolol Dropranolol Ecastolol Epanolol Ericolol Ersentilide Esatenolol Esmolol Esprolol Eugenodilol Exaprolol Falintolol Flestolol Flusoxolol Hydroxycarteolol Hydroxytertatolol ICI-118,551 Idropranolol Indenolol Indopanolol Iodocyanopindolol Iprocrolol Isoxaprolol Isamoltane Labetalol Landiolol Levobetaxolol Levobunolol Levocicloprolol Levomoprolol Medroxalol Mepindolol Metalol Metipranolol Metoprolol Moprolol Nadolol Nadoxolol Nafetolol Nebivolol Neraminol Nifenalol Nipradilol Oberadilol Oxprenolol Pacrinolol Pafenolol Pamatolol Pargolol Parodilol Penbutolol Penirolol PhQA-33 Pindolol Pirepolol Practolol Primidolol Procinolol Pronethalol Propafenone Propranolol Ridazolol Ronactolol Soquinolol Sotalol Spirendolol SR 59230A Sulfinalol TA-2005 Talinolol Tazolol Teoprolol Tertatolol Terthianolol Tienoxolol Tilisolol Timolol Tiprenolol Tolamolol Toliprolol Tribendilol Trigevolol Xibenolol Xipranolol

Reuptake inhibitors

NET	Selective norepinephrine reuptake inhibitors: Amedalin Atomoxetine (Tomoxetine) Ciclazindol Daledalin Edivoxetine Esreboxetine Lortalamine Mazindol Nisoxetine Reboxetine Talopram Talsupram Tandamine Viloxazine; Norepinephrine-dopamine reuptake inhibitors: Amineptine Bupropion (Amfebutamone) Fencamine Fencamfamine Lefetamine Levophacetoperane LR-5182 Manifaxine Methylphenidate Nomifensine O-2172 Radafaxine; Serotonin-norepinephrine reuptake inhibitors: Bicifadine Desvenlafaxine Duloxetine Eclanamine Levomilnacipran Milnacipran Sibutramine Venlafaxine; Serotonin-norepinephrine-dopamine reuptake inhibitors: Brasofensine Diclofensine DOV-102,677 DOV-21,947 DOV-216,303 JNJ-7925476 JZ-IV-10 Methylnaphthidate Naphyrone NS-2359 PRC200-SS SEP-225,289 SEP-227,162 Tesofensine; Tricyclic antidepressants: Amitriptyline Butriptyline Cianopramine Clomipramine Desipramine Dosulepin Doxepin Imipramine Lofepramine melitracen Nortriptyline Protriptyline Trimipramine; Tetracyclic antidepressants: Amoxapine Maprotiline Mianserin Oxaprotiline Setiptiline; Others: Cocaine CP-39,332 Ethanol EXP-561 Fezolamine Ginkgo biloba Indeloxazine Nefazodone Nefopam Pridefrine Tapentadol Tedatioxetine Teniloxazine Tofenacin Tramadol Ziprasidone

VMAT	Ibogaine Reserpine Tetrabenazine

Releasing agents

Morpholines: Fenbutrazate
Fenmetramide
Morazone
Phendimetrazine
Phenmetrazine
Pseudophenmetrazine; Oxazolines: 4-MAR
Aminorex
Clominorex
Cyclazodone
Fenozolone
Fluminorex
Pemoline
Thozalinone; Phenethylamines (also amphetamines, cathinones, etc): 2-OH-PEA
4-CAB
4-FA
4-FMA
4-MA
4-MMA
Alfetamine
Amfecloral
Amfepentorex
Amfepramone
Amphetamine (Dextroamphetamine
Levoamphetamine)
Amphetaminil
β-Me-PEA
BDB
Benzphetamine
BOH
Buphedrone
Butylone
Cathine
Cathinone
Clobenzorex
Clortermine
Dimethylamphetamine
Dimethylcathinone
DMA
DMMA
EBDB
Ephedrine
Ethcathinone
Ethylone
Etilamfetamine
Famprofazone
Fenethylline
Fenproporex
Flephedrone
Fludorex
Furfenorex
Hordenine
Hydroxyamphetamine
IAP
IMP
Iofetamine
Lisdexamfetamine
Lophophine
MBDB
MDA
MDEA
MDMA
MDMPEA
MDOH
MDPEA
Mefenorex
Mephedrone
Mephentermine
Methamphetamine (Dextromethamphetamine
Levomethamphetamine)
Methcathinone
Methedrone
Methylone
Naphthylisopropylamine
Ortetamine
pBA
pCA
Pentorex
Phenethylamine
Pholedrine
Phenpromethamine
Phentermine
Phenylpropanolamine
pIA
Prenylamine
Propylamphetamine
Pseudoephedrine
Selegiline (also D-Deprenyl)
Tiflorex
Tyramine
Xylopropamine
Zylofuramine; Piperazines: 2C-B-BZP
BZP
MBZP
mCPP
MDBZP
MeOPP
pFPP; Others: 2-ADN
2-AI
2-AT
2-BP
4-BP
5-IAI
Clofenciclan
Cyclopentamine
Cypenamine
Cyprodenate
Feprosidnine
Gilutensin
Heptaminol
Hexacyclonate
Indanorex
Isometheptene
Methylhexanamine
Octodrine
Phthalimidopropiophenone
Propylhexedrine (Levopropylhexedrine)
Tuaminoheptane

Enzyme inhibitors

Anabolism

PAH	3,4-Dihydroxystyrene

TH	3-Iodotyrosine Aquayamycin Bulbocapnine Metirosine Oudenone

AAAD	Benserazide Carbidopa DFMD Genistein Methyldopa

DBH	Bupicomide Disulfiram Dopastin Fusaric acid Nepicastat Phenopicolinic acid Tropolone

PNMT	CGS-19281A SKF-64139 SKF-7698

Catabolism

MAO	Nonselective: Benmoxin Caroxazone Echinopsidine Furazolidone Hydralazine Indantadol Iproclozide Iproniazid Isocarboxazid Isoniazid Linezolid Mebanazine Metfendrazine Nialamide Octamoxin Paraxazone Phenelzine Pheniprazine Phenoxypropazine Pivalylbenzhydrazine Procarbazine Safrazine Tranylcypromine; MAO-A selective: Amiflamine Bazinaprine Befloxatone Befol Brofaromine Cimoxatone Clorgiline Esuprone Harmala alkaloids (Harmine, Harmaline Tetrahydroharmine Harman Norharman, etc) Methylene blue Metralindole Minaprine Moclobemide Pirlindole Sercloremine Tetrindole Toloxatone Tyrima; MAO-B selective: Ladostigil Lazabemide Milacemide Mofegiline Pargyline Rasagiline Safinamide Selegiline (also D-Deprenyl) * Note that MAO-B inhibitors also influence norepinephrine/epinephrine levels since they inhibit the breakdown of their precursor dopamine.

COMT	Entacapone Nitecapone Tolcapone

Others

Precursors	L-Phenylalanine → L-Tyrosine → L-DOPA (Levodopa) → Dopamine L-DOPS (Droxidopa)

Cofactors	Ferrous Iron (Fe²⁺) S-Adenosyl-L-Methionine Vitamin B₃ (Niacin Nicotinamide → NADPH) Vitamin B₆ (Pyridoxine Pyridoxamine Pyridoxal → Pyridoxal Phosphate) Vitamin B₉ (Folic acid → Tetrahydrofolic acid) Vitamin C (Ascorbic acid) Zinc (Zn²⁺)

Others	Activity enhancers: BPAP PPAP; Release blockers: Bethanidine Bretylium Guanadrel Guanazodine Guanclofine Guanethidine Guanoxan; Toxins: 6-OHDA

List of adrenergic drugs

Cholinergics

Receptor ligands

mAChR	Agonists: 77-LH-28-1 AC-42 AC-260,584 Aceclidine Acetylcholine AF30 AF150(S) AF267B AFDX-384 Alvameline AQRA-741 Arecoline Bethanechol Butyrylcholine Carbachol CDD-0034 CDD-0078 CDD-0097 CDD-0098 CDD-0102 Cevimeline Choline cis-Dioxolane Ethoxysebacylcholine LY-593,039 L-689,660 LY-2,033,298 McNA343 Methacholine Milameline Muscarine NGX-267 Ocvimeline Oxotremorine PD-151,832 Pilocarpine RS86 Sabcomeline SDZ 210-086 Sebacylcholine Suberylcholine Talsaclidine Tazomeline Thiopilocarpine Vedaclidine VU-0029767 VU-0090157 VU-0152099 VU-0152100 VU-0238429 WAY-132,983 Xanomeline YM-796 Antagonists: 3-Quinuclidinyl Benzilate 4-DAMP Aclidinium Bromide Anisodamine Anisodine Atropine Atropine Methonitrate Benactyzine Benzatropine/Benztropine Benzydamine BIBN 99 Biperiden Bornaprine CAR-226,086 CAR-301,060 CAR-302,196 CAR-302,282 CAR-302,368 CAR-302,537 CAR-302,668 CS-27349 Cyclobenzaprine Cyclopentolate Darifenacin DAU-5884 Dimethindene Dexetimide DIBD Dicyclomine/Dicycloverine Ditran EA-3167 EA-3443 EA-3580 EA-3834 Etanautine Etybenzatropine/Ethylbenztropine Flavoxate Himbacine HL-031,120 Ipratropium bromide J-104,129 Hyoscyamine Mamba Toxin 3 Mamba Toxin 7 Mazaticol Mebeverine Methoctramine Metixene N-Ethyl-3-Piperidyl Benzilate N-Methyl-3-Piperidyl Benzilate Orphenadrine Otenzepad Oxybutynin PBID PD-102,807 PD-0298029 Phenglutarimide Phenyltoloxamine Pirenzepine Piroheptine Procyclidine Profenamine RU-47,213 SCH-57,790 SCH-72,788 SCH-217,443 Scopolamine/Hyoscine Solifenacin Telenzepine Tiotropium bromide Tolterodine Trihexyphenidyl Tripitamine Tropatepine Tropicamide WIN-2299 Xanomeline Zamifenacin; Others: 1st Generation Antihistamines (Brompheniramine chlorphenamine cyproheptadine dimenhydrinate diphenhydramine doxylamine mepyramine/pyrilamine phenindamine pheniramine tripelennamine triprolidine, etc) Tricyclic Antidepressants (Amitriptyline doxepin trimipramine, etc) Tetracyclic Antidepressants (Amoxapine maprotiline, etc) Typical Antipsychotics (Chlorpromazine thioridazine, etc) Atypical Antipsychotics (Clozapine olanzapine, etc.)

nAChR	Agonists: 5-HIAA A-84,543 A-366,833 A-582,941 A-867,744 ABT-202 ABT-418 ABT-560 ABT-894 Acetylcholine Altinicline Anabasine Anatoxin-a AR-R17779 Butinoline Butyrylcholine Carbachol Choline Cotinine Cytisine Decamethonium Desformylflustrabromine Dianicline Dimethylphenylpiperazinium Epibatidine Epiboxidine Ethanol Ethoxysebacylcholine EVP-4473 EVP-6124 Galantamine GTS-21 Ispronicline Lobeline MEM-63,908/RG-3487 Nicotine NS-1738 PHA-543,613 PHA-709,829 PNU-120,596 PNU-282,987 Pozanicline Rivanicline RJR-2429 Sazetidine A Sebacylcholine SIB-1508Y SIB-1553A SSR-180,711 Suberylcholine Suxamethonium/Succinylcholine TC-1698 TC-1734 TC-1827 TC-2216 TC-5214 TC-5619 TC-6683 Tebanicline Tropisetron UB-165 Varenicline WAY-317,538 XY-4083 Antagonists: 18-Methoxycoronaridine α-Bungarotoxin α-Conotoxin Alcuronium Amantadine Anatruxonium Atracurium Bupropion Chandonium Chlorisondamine Cisatracurium Coclaurine Coronaridine Dacuronium Decamethonium Dextromethorphan Dextropropoxyphene Dextrorphan Diadonium DHβE Dimethyltubocurarine/Metocurine Dipyrandium Dizocilpine/MK-801 Doxacurium Duador Esketamine Fazadinium Gallamine Hexafluronium Hexamethonium/Benzohexonium Ibogaine Isoflurane Ketamine Kynurenic acid Laudexium/Laudolissin Levacetylmethadol Malouetine Mecamylamine Memantine Methadone (Levomethadone) Methorphan/Racemethorphan Methyllycaconitine Metocurine Mivacurium Morphanol/Racemorphan Neramexane Nitrous Oxide Pancuronium Pempidine Pentamine Pentolinium Phencyclidine Pipecuronium Radafaxine Rapacuronium Rocuronium Surugatoxin Thiocolchicoside Toxiferine Trimethaphan Tropeinium Tubocurarine Vecuronium Xenon

Reuptake inhibitors

Plasmalemmal

CHT Inhibitors	Hemicholinium-3/Hemicholine Triethylcholine

Vesicular

VAChT Inhibitors	Vesamicol

Enzyme inhibitors

Anabolism

ChAT inhibitors	1-(-Benzoylethyl)pyridinium 2-(α-Naphthoyl)ethyltrimethylammonium 3-Chloro-4-stillbazole 4-(1-Naphthylvinyl)pyridine Acetylseco hemicholinium-3 Acryloylcholine AF64A B115 BETA CM-54,903 N,N-Dimethylaminoethylacrylate N,N-Dimethylaminoethylchloroacetate

Catabolism

AChE inhibitors	Reversible: Carbamates: Aldicarb Bendiocarb Bufencarb Carbaryl Carbendazim Carbetamide Carbofuran Chlorbufam Chloropropham Ethienocarb Ethiofencarb Fenobucarb Fenoxycarb Formetanate Furadan Ladostigil Methiocarb Methomyl Miotine Oxamyl Phenmedipham Pinmicarb Pirimicarb Propamocarb Propham Propoxur; Stigmines: Ganstigmine Neostigmine Phenserine Physostigmine Pyridostigmine Rivastigmine; Others: Acotiamide Ambenonium Donepezil Caffeine Edrophonium Galantamine Huperzine A Minaprine Tacrine Zanapezil Irreversible: Organophosphates: Acephate Azinphos-methyl Bensulide Cadusafos Chlorethoxyfos Chlorfenvinphos Chlorpyrifos Chlorpyrifos-Methyl Coumaphos Cyclosarin Demeton Demeton-S-Methyl Diazinon Dichlorvos Dicrotophos Diisopropyl fluorophosphate Diisopropylphosphate Dimethoate Dioxathion Disulfoton EA-3148 Echothiophate Ethion Ethoprop Fenamiphos Fenitrothion Fenthion Fosthiazate GV Isofluorophate Isoxathion Malaoxon Malathion Methamidophos Methidathion Metrifonate Mevinphos Monocrotophos Naled Novichok agent Omethoate Oxydemeton-Methyl Paraoxon Parathion Parathion-Methyl Phorate Phosalone Phosmet Phoxim Pirimiphos-Methyl Sarin Soman Tabun Tebupirimfos Temefos Terbufos Tetrachlorvinphos Tribufos Trichlorfon VE VG VM VR VX; Others: Demecarium Onchidal (Onchidella binneyi)

BChE inhibitors	Cymserine * Many of the acetylcholinesterase inhibitors listed above act as butyrylcholinesterase inhibitors.

Others

Precursors	Choline (Lecithin) Citicoline Cyprodenate Dimethylethanolamine Glycerophosphocholine Meclofenoxate/Centrophenoxine Phosphatidylcholine Phosphatidylethanolamine Phosphorylcholine Pirisudanol

Cofactors	Acetic acid Acetylcarnitine Acetyl-coA Vitamin B₅ (Pantethine Pantetheine Panthenol)

Others	Acetylcholine releasing agents: α-Latrotoxin β-Bungarotoxin; Acetylcholine release inhibitors: Botulinum toxin (Botox); Acetylcholinesterase reactivators: Asoxime Obidoxime Pralidoxime

Histaminergics

Receptor

H₁	Agonists: 2-Pyridylethylamine Betahistine Histamine HTMT UR-AK49 Antagonists: 1st generation: 4-Methyldiphenhydramine Alimemazine Antazoline Azatadine Bamipine Benzatropine/Benztropine Bepotastine Bromazine Brompheniramine Buclizine Captodiame Carbinoxamine Chlorcyclizine Chloropyramine Chlorothen Chlorphenamine Chlorphenoxamine Cinnarizine Clemastine Clobenzepam Clocinizine Cyclizine Cyproheptadine Dacemazine Deptropine Dexbrompheniramine Dexchlorpheniramine Dimenhydrinate Dimetindene Diphenhydramine Diphenylpyraline Doxylamine Embramine Etodroxizine Etybenzatropine/Ethylbenztropine Etymemazine Flunarizine Histapyrrodine Homochlorcyclizine Hydroxyethylpromethazine Hydroxyzine Isopromethazine Isothipendyl Meclozine Mepyramine/Pyrilamine Mequitazine Methafurylene Methapyrilene Methdilazine Moxastine Niaprazine Orphenadrine Oxatomide Oxomemazine Phenindamine Pheniramine Phenyltoloxamine Pimethixene Piperoxan Pipoxizine Promethazine Propiomazine Pyrrobutamine Talastine Thenalidine Thenyldiamine Thiazinamium Thonzylamine Tolpropamine Tripelennamine Triprolidine 2nd generation: Acrivastine Alinastine Astemizole Azelastine Bamirastine Barmastine Bepiastine Bepotastine Bilastine Cabastinen Carebastine Cetirizine Clemastine Clemizole Clobenztropine Dorastine Ebastine Emedastine Epinastine Flezelastine Ketotifen Latrepirdine Levocabastine Linetastine Loratadine Mapinastine Mebhydrolin Mizolastine Moxastine Noberastine Octastine Olopatadine Perastine Piclopastine Rocastine Rupatadine Setastine Talastine Temelastine Terfenadine Zepastine 3rd generation: Desloratadine Fexofenadine Levocetirizine Ungrouped: Belarizine Efletirizine Elbanizine Flotrenizine Medrylamine Napactadine Pibaxizine Tagorizine Trelnarizine Trenizine Vapitadine Miscellaneous: Tricyclic antidepressants (amitriptyline, doxepin, trimipramine, etc) Tetracyclic antidepressants (mianserin, mirtazapine, etc) Typical antipsychotics (chlorpromazine, thioridazine, etc) Atypical antipsychotics (clozapine, olanzapine, quetiapine, etc)

H₂	Agonists: Amthamine Betazole Dimaprit Histamine HTMT Impromidine UR-AK49 Antagonists: Bisfentidine Burimamide Cimetidine Dalcotidine Donetidine Ebrotidine Etintidine Famotidine Lafutidine Lamtidine Lavoltidine/Loxtidine Lupitidine Metiamide Mifentidine Niperotidine Nizatidine Osutidine Oxmetidine Pibutidine Quisultazine/Quisultidine Ramixotidine Ranitidine Roxatidine Sufotidine Tiotidine Tuvatidine Venritidine Xaltidine

H₃	Agonists: α-Methylhistamine Cipralisant Histamine Imetit Immepip Immethridine Methimepip Proxyfan Antagonists: A-349,821 A-423,579 ABT-239 Betahistine Burimamide Ciproxifan Clobenpropit Conessine GSK-189,254 Impentamine Iodophenpropit JNJ-5,207,852 MK-0249 NNC-38-1,049 PF-03654746 Pitolisant SCH-79,687 Thioperamide VUF-5,681

H₄	Agonists: 4-Methylhistamine Histamine VUF-8,430 Antagonists: JNJ-7,777,120 Thioperamide VUF-6,002

Transporter

VMAT	Inhibitors: Ibogaine Reserpine Tetrabenazine

Enzyme

HDC	Inhibitors: Catechin Meciadanol Naringenin Tritoqualine

DAO	Inhibitors: Aminoguanidine

Others

Endogenous	Histamine; Precursors: L-Histidine; Cofactors: Vitamin B6

Serotonergics

5-HT₁ receptor ligands

5-HT_1A	Agonists: Azapirones: Alnespirone Binospirone Buspirone Enilospirone Eptapirone Gepirone Ipsapirone Perospirone Revospirone Tandospirone Tiospirone Umespirone Zalospirone; Antidepressants: Etoperidone Nefazodone Trazodone Vortioxetine; Antipsychotics: Aripiprazole Asenapine Clozapine Quetiapine Ziprasidone; Ergolines: Dihydroergotamine Bromocriptine Ergotamine Lisuride Methysergide LSD; Tryptamines: 5-CT 5-MeO-DMT 5-MT Bufotenin DMT Indorenate Psilocin Psilocybin; Others: 8-OH-DPAT Adatanserin Bay R 1531 Befiradol BMY-14802 Cannabidiol Dimemebfe Ebalzotan Eltoprazine F-11,461 F-12,826 F-13,714 F-14,679 F-15,063 F-15,599 Flesinoxan Flibanserin Lesopitron LY-293,284 LY-301,317 MKC-242 Naluzotan NBUMP Osemozotan Oxaflozane Pardoprunox Piclozotan Rauwolscine Repinotan Roxindole RU-24,969 S 14,506 S-14,671 S-15,535 Sarizotan SSR-181,507 Sunepitron U-92,016-A Urapidil Vilazodone Xaliproden Yohimbine Antagonists: Antipsychotics: Iloperidone Risperidone Sertindole; Beta blockers: Alprenolol Cyanopindolol Iodocyanopindolol Oxprenolol Pindobind Pindolol Propranolol Tertatolol; Others: AV965 BMY-7,378 CSP-2503 Dotarizine Flopropione GR-46611 Isamoltane Lecozotan Mefway Metitepine/Methiothepin MPPF NAN-190 Robalzotan S-15535 SB-649,915 SDZ 216-525 Spiperone Spiramide Spiroxatrine UH-301 WAY-100,135 WAY-100,635 Xylamidine

5-HT_1B	Agonists: Lysergamides: Dihydroergotamine Ergotamine Methysergide; Piperazines: Eltoprazine TFMPP; Triptans: Avitriptan Eletriptan Sumatriptan Zolmitriptan; Tryptamines: 5-CT 5-MT; Others: CGS-12066A Bromocriptine CP-93,129 CP-94,253 CP-135,807 RU-24,969 Vortioxetine Antagonists: Lysergamides: Metergoline; Others: AR-A000002 Elzasonan GR-127,935 Isamoltane Metitepine/Methiothepin SB-216,641 SB-224,289 SB-236,057 Yohimbine

5-HT_1D	Agonists: Lysergamides: Dihydroergotamine Methysergide; Triptans: Almotriptan Avitriptan Eletriptan Frovatriptan Naratriptan Rizatriptan Sumatriptan Zolmitriptan; Tryptamines: 5-CT 5-Ethyl-DMT 5-MT 5-(Nonyloxy)tryptamine; Others: CP-135,807 Bromocriptine CP-286,601 GR-46611 L-694,247 L-772,405 PNU-109,291 PNU-142633 Antagonists: Lysergamides: Metergoline; Others: Alniditan BRL-15,572 Elzasonan GR-127,935 Ketanserin LY-310,762 LY-367,642 LY-456,219 LY-456,220 Metitepine/Methiothepin Ritanserin Yohimbine Ziprasidone

5-HT_1E	Agonists: Lysergamides: Methysergide; Triptans: Eletriptan; Tryptamines: BRL-54443 Tryptamine Antagonists: Metitepine/Methiothepin

5-HT_1F	Agonists: Triptans: Eletriptan Naratriptan Sumatriptan; Tryptamines: 5-MT; Others: BRL-54443 Bromocriptine Lasmiditan LY-334,370 Antagonists: Metitepine/Methiothepin

5-HT₂ receptor ligands

5-HT_2A	Agonists: Lysergamides: ALD-52 Ergometrine Lisuride LA-SS-Az LSD LSD-Pip Lysergic acid 2-butyl amide Lysergic acid 3-pentyl amide Methysergide; Phenethylamines: 25I-NBF 25I-NBMD 25I-NBOH 25I-NBOMe 2C-B 2C-B-FLY 2CB-Ind 25C-NBOMe 2C-E 2C-I 2C-TFM-NBOMe 2C-T-2 2C-T-7 2C-T-21 2CBCB-NBOMe 2CBFly-NBOMe Bromo-DragonFLY DOB DOC DOI DOM MDA MDMA Mescaline TCB-2 TFMFly; Piperazines: BZP Quipazine TFMPP; Tryptamines: 5-CT 5-MeO-α-ET 5-MeO-α-MT 5-MeO-DET 5-MeO-DiPT 5-MeO-DMT 5-MeO-DPT 5-MT α-ET α-Methyl-5-HT α-MT Bufotenin DET DiPT DMT DPT Psilocin Psilocybin; Others: AL-34662 AL-37350A Bromocriptine Dimemebfe Medifoxamine O-4310 Oxaflozane PHA-57378 PNU-22394 PNU-181731 RH-34 Antagonists: Atypical antipsychotics: Amperozide Aripiprazole Carpipramine Clocapramine Clorotepine Clozapine Gevotroline Iloperidone Melperone Mosapramine Olanzapine Paliperidone Pimozide Quetiapine Risperidone Sertindole Zicronapine Ziprasidone Zotepine; Typical antipsychotics: Loxapine Pipamperone; Antidepressants: Amitriptyline Amoxapine Aptazapine Etoperidone Mianserin Mirtazapine Nefazodone Teniloxazine Trazodone; Others: 5-I-R91150 5-MeO-NBpBrT AC-90179 Adatanserin Altanserin AMDA APD-215 Blonanserin Cinanserin CSP-2503 Cyproheptadine Deramciclane Dotarizine Eplivanserin Esmirtazapine Fananserin Flibanserin Glemanserin Ketanserin KML-010 Lubazodone Mepiprazole Metitepine/Methiothepin Nantenine Pimavanserin Pizotifen Pruvanserin Rauwolscine Ritanserin S-14,671 Sarpogrelate Setoperone Spiperone Spiramide SR-46349B Volinanserin Xylamidine Yohimbine

5-HT_2B	Agonists: Oxazolines: 4-Methylaminorex Aminorex; Phenethylamines: Chlorphentermine Cloforex DOB DOC DOI DOM Fenfluramine (Dexfenfluramine, Levofenfluramine) MDA MDMA Norfenfluramine; Tryptamines: 5-CT 5-MT α-Methyl-5-HT; Others: BW-723C86 Bromocriptine Cabergoline mCPP Pergolide PNU-22394 Ro60-0175 Antagonists: Agomelatine Asenapine EGIS-7625 Ketanserin Lisuride LY-272,015 Metitepine/Methiothepin PRX-08066 Rauwolscine Ritanserin RS-127,445 Sarpogrelate SB-200,646 SB-204,741 SB-206,553 SB-215,505 SB-221,284 SB-228,357 SDZ SER-082 Tegaserod Yohimbine

5-HT_2C	Agonists: Phenethylamines: 2C-B 2C-E 2C-I 2C-T-2 2C-T-7 2C-T-21 DOB DOC DOI DOM MDA MDMA Mescaline; Piperazines: Aripiprazole mCPP TFMPP; Tryptamines: 5-CT 5-MeO-α-ET 5-MeO-α-MT 5-MeO-DET 5-MeO-DiPT 5-MeO-DMT 5-MeO-DPT 5-MT α-ET α-Methyl-5-HT α-MT Bufotenin DET DiPT DMT DPT Psilocin Psilocybin; Others: A-372,159 Bromocriptine AL-38022A CP-809,101 Dimemebfe Lorcaserin Medifoxamine MK-212 Org 12,962 ORG-37,684 Oxaflozane PHA-57378 PNU-22394 PNU-181731 Ro60-0175 Ro60-0213 Vabicaserin WAY-629 WAY-161,503 YM-348 Antagonists: Atypical antipsychotics: Clorotepine Clozapine Iloperidone Melperone Olanzapine Paliperidone Pimozide Quetiapine Risperidone Sertindole Ziprasidone Zotepine; Typical antipsychotics: Chlorpromazine Loxapine Pipamperone; Antidepressants: Agomelatine Amitriptyline Amoxapine Aptazapine Etoperidone Fluoxetine Mianserin Mirtazapine Nefazodone Nortriptyline Tedatioxetine Trazodone; Others: Adatanserin CEPC Cinanserin Cyproheptadine Deramciclane Dotarizine Eltoprazine Esmirtazapine FR-260,010 Ketanserin Ketotifen Latrepirdine Metitepine/Methiothepin Methysergide Pizotifen Ritanserin RS-102,221 S-14,671 SB-200,646 SB-206,553 SB-221,284 SB-228,357 SB-242,084 SB-243,213 SDZ SER-082 Xylamidine

5-HT₃	Agonists: Piperazines: BZP Quipazine; Tryptamines: 2-Methyl-5-HT 5-CT; Others: Chlorophenylbiguanide Butanol Ethanol Halothane Isoflurane RS-56812 SR-57,227 SR-57,227-A Toluene Trichloroethane Trichloroethanol Trichloroethylene YM-31636 Antagonists: Antiemetics: AS-8112 Alosetron Azasetron Batanopride Bemesetron Cilansetron Dazopride Dolasetron Galanolactone Granisetron Lerisetron Ondansetron Palonosetron Ramosetron Renzapride Tropisetron Zacopride Zatosetron; Atypical antipsychotics: Clozapine Olanzapine Quetiapine; Tetracyclic antidepressants: Amoxapine Mianserin Mirtazapine; Others: CSP-2503 ICS-205,930 MDL-72,222 Memantine Nitrous Oxide Ricasetron Sevoflurane Tedatioxetine Thujone Tropanserin Vortioxetine Xenon

5-HT₄	Agonists: Gastroprokinetic Agents: Cinitapride Cisapride Dazopride Metoclopramide Mosapride Prucalopride Renzapride Tegaserod Velusetrag Zacopride; Others: 5-MT BIMU8 CJ-033,466 PRX-03140 RS-67333 RS-67506 SL65.0155 Antagonists: GR-113,808 GR-125,487 L-Lysine Piboserod RS-39604 RS-67532 SB-203,186 SB-204,070

5-HT_5A	Agonists: Lysergamides: Ergotamine LSD; Tryptamines: 5-CT; Others: Valerenic Acid Antagonists: Asenapine Latrepirdine Metitepine/Methiothepin Ritanserin SB-699,551 * Note that the 5-HT_5B receptor is not functional in humans.

5-HT₆	Agonists: Lysergamides: Dihydroergotamine Ergotamine Lisuride LSD Mesulergine Metergoline Methysergide; Tryptamines: 2-Methyl-5-HT 5-BT 5-CT 5-MT Bufotenin E-6801 E-6837 EMD-386,088 EMDT LY-586,713 N-Methyl-5-HT Tryptamine; Others: WAY-181,187 WAY-208,466 Antagonists: Antidepressants: Amitriptyline Amoxapine Clomipramine Doxepin Mianserin Nortriptyline; Atypical antipsychotics: Aripiprazole Asenapine Clorotepine Clozapine Fluperlapine Iloperidone Olanzapine Tiospirone; Typical antipsychotics: Chlorpromazine Loxapine; Others: BGC20-760 BVT-5182 BVT-74316 Cerlapirdine EGIS-12,233 GW-742,457 Ketanserin Latrepirdine Lu AE58054 Metitepine/Methiothepin MS-245 PRX-07034 Ritanserin Ro04-6790 Ro 63-0563 SB-258,585 SB-271,046 SB-357,134 SB-399,885 SB-742,457

5-HT₇	Agonists: Lysergamides: LSD; Tryptamines: 5-CT 5-MT Bufotenin; Others: 8-OH-DPAT AS-19 Bifeprunox E-55888 LP-12 LP-44 RU-24,969 Sarizotan Antagonists: Lysergamides: 2-Bromo-LSD Bromocriptine Dihydroergotamine Ergotamine Mesulergine Metergoline Methysergide; Antidepressants: Amitriptyline Amoxapine Clomipramine Imipramine Maprotiline Mianserin; Atypical antipsychotics: Amisulpride Aripiprazole Asenapine Clorotepine Clozapine Olanzapine Risperidone Sertindole Tiospirone Ziprasidone Zotepine; Typical antipsychotics: Chlorpromazine Loxapine; Others: Butaclamol EGIS-12,233 Ketanserin LY-215,840 Metitepine/Methiothepin Pimozide Ritanserin SB-258,719 SB-258,741 SB-269,970 SB-656,104 SB-656,104-A SB-691,673 SLV-313 SLV-314 Spiperone SSR-181,507 Vortioxetine

Reuptake inhibitors

SERT	Selective serotonin reuptake inhibitors (SSRIs): Alaproclate Citalopram Dapoxetine Desmethylcitalopram Desmethylsertraline Escitalopram Femoxetine Fluoxetine Fluvoxamine Indalpine Ifoxetine Litoxetine Lubazodone Omiloxetine Panuramine Paroxetine Pirandamine RTI-353 Seproxetine Sertraline Vilazodone Vortioxetine Zimelidine; Serotonin-norepinephrine reuptake inhibitors (SNRIs): Bicifadine Desvenlafaxine Duloxetine Eclanamine Levomilnacipran Milnacipran Sibutramine Venlafaxine; Serotonin-norepinephrine-dopamine reuptake inhibitors (SNDRIs): Brasofensine Diclofensine DOV-102,677 DOV-21,947 DOV-216,303 NS-2359 SEP-225289 SEP-227,162 Tedatioxetine Tesofensine; Tricyclic antidepressants (TCAs): Amitriptyline Butriptyline Cianopramine Clomipramine Desipramine Dosulepin Doxepin Imipramine Lofepramine Nortriptyline Pipofezine Protriptyline Trimipramine; Tetracyclic antidepressants (TeCAs): Amoxapine; Piperazines: Nefazodone Trazodone; Antihistamines: Brompheniramine Chlorphenamine Diphenhydramine Mepyramine/Pyrilamine Pheniramine Tripelennamine; Opioids: Pethidine Methadone Propoxyphene; Others: Cocaine CP-39,332 Cyclobenzaprine Dextromethorphan Dextrorphan EXP-561 Fezolamine Mesembrine Nefopam PIM-35 Pridefine Roxindole SB-649,915 Tofenacin Ziprasidone

VMAT	Ibogaine Reserpine Tetrabenazine

Releasing agents

Aminoindanes: 5-IAI
AMMI
ETAI
MDAI
MDMAI
MMAI
TAI; Aminotetralins: 6-CAT
8-OH-DPAT
MDAT
MDMAT; Oxazolines: 4-Methylaminorex
Aminorex
Clominorex
Fluminorex; Phenethylamines (also Amphetamines, Cathinones, Phentermines, etc): 2-Methyl-MDA
4-CAB
4-FA
4-FMA
4-HA
4-MTA
5-APDB
5-Methyl-MDA
6-APDB
6-Methyl-MDA
AEMMA
Amiflamine
BDB
BOH
Brephedrone
Butylone
Chlorphentermine
Cloforex
Amfepramone
Metamfepramone
DCA
DFMDA
DMA
DMMA
EBDB
EDMA
Ethylone
Etolorex
Fenfluramine (Dexfenfluramine, Levofenfluramine)
Flephedrone
IAP
IMP
Iofetamine
Lophophine
MBDB
MDA
MDEA
MDHMA
MDMA
MDMPEA
MDOH
MDPEA
Mephedrone
Methedrone
Methylone
MMA
MMDA
MMDMA
MMMA
NAP
Norfenfluramine
4-TFMA
pBA
pCA
pIA
PMA
PMEA
PMMA
TAP; Piperazines: 2C-B-BZP
3-MeOPP
BZP
DCPP
MBZP
mCPP
MDBZP
MeOPP
Mepiprazole
pCPP
pFPP
pTFMPP
TFMPP; Tryptamines: 4-Methyl-αET
4-Methyl-αMT
5-CT
5-MeO-αET
5-MeO-αMT
5-MT
αET
αMT
DMT
Tryptamine (itself); Others: Indeloxazine
Tramadol
Viqualine

Enzyme inhibitors

Anabolism

TPH	AGN-2979 Fenclonine

AAAD	Benserazide Carbidopa Genistein Methyldopa

Catabolism

MAO

Nonselective: Benmoxin
Caroxazone
Echinopsidine
Furazolidone
Hydralazine
Indantadol
Iproclozide
Iproniazid
Isocarboxazid
Isoniazid
Linezolid
Mebanazine
Metfendrazine
Nialamide
Octamoxin
Paraxazone
Phenelzine
Pheniprazine
Phenoxypropazine
Pivalylbenzhydrazine
Procarbazine
Safrazine
Tranylcypromine; MAO-A Selective: Amiflamine
Bazinaprine
Befloxatone
Befol
Brofaromine
Cimoxatone
Clorgiline
Esuprone
Harmala alkaloids (Harmine
Harmaline
Tetrahydroharmine
Harman
Norharman, etc)
Methylene Blue
Metralindole
Minaprine
Moclobemide
Pirlindole
Sercloremine
Tetrindole
Toloxatone
Tyrima

Others

Precursors	L-Tryptophan → 5-HTP

Cofactors	Ferrous iron (Fe²⁺) Magnesium (Mg²⁺) Tetrahydrobiopterin Vitamin B₃ (Niacin Nicotinamide → NADPH) Vitamin B₆ (Pyridoxine Pyridoxamine Pyridoxal → Pyridoxal phosphate) Vitamin B₉ (Folic Acid → Tetrahydrofolic acid) Vitamin C (Ascorbic acid) Zinc (Zn²⁺)

Others	Activity enhancers: BPAP PPAP; Reuptake enhancers: Tianeptine

v t e Tricyclics

Classes	Acridine Anthracene Dibenzazepine Dibenzocycloheptene Dibenzodiazepine Dibenzothiazepine Dibenzothiepin Dibenzoxazepine Dibenzoxepin Phenothiazine Pyridazinobenzoxazine Pyridinobenzodiazepine Thioxanthene

Antidepressants	7-OH-Amoxapine Amezepine Amineptine Amitriptyline Amitriptylinoxide Amoxapine Aptazapine Azepindole Azipramine Batelapine Butriptyline Cianopramine Ciclazindol Ciclopramine Cidoxepin Clomipramine Cotriptyline Cyanodothiepin Demexiptiline Depramine/Balipramine Desipramine Dibenzepin Dimetacrine Dosulepin/Dothiepin Doxepin Enprazepine Esmirtazapine Fluotracen Hepzidine Homopipramol Imipramine Imipraminoxide Intriptyline Iprindole Ketipramine Litracen Lofepramine Losindole Loxapine Maprotiline Mariptiline Mazindol Melitracen Metapramine Mezepine Mianserin Mirtazapine Naranol Nitroxazepine Nortriptyline Noxiptiline Octriptyline Opipramol Oxaprotiline Pipofezine Pirandamine Propizepine Protriptyline Quinupramine Setiptiline/Teciptiline Spiroxepin Tandamine Tampramine Tianeptine Tienopramine Trimipramine

Antihistamines	Alimemazine Azatadine Clobenzepam Cyproheptadine Dacemazine Deptropine Desloratadine Epinastine Etymemazine Hydroxyethylpromethazine Isopromethazine Isothipendyl Ketotifen Latrepirdine Loratadine Mebhydrolin Mequitazine Methdilazine Olopatadine Oxomemazine Phenindamine Pimethixene Promethazine Propiomazine Rupatadine Thiazinamium

Antipsychotics	Acetophenazine Amoxapine Asenapine Butaclamol Butaperazine Carphenazine Carpipramine Chlorpromazine Chlorprothixene Ciclindole Citatepine Clocapramine Clomacran Clorotepin Clotiapine Clozapine Cyanothepin Doclothepin Docloxythepin Erizepine Flucindole Flumezapine Fluotracen Flupentixol Fluphenazine Gevotroline Homopipramol Isofloxythepin Levomepromazine/Methotrimeprazine Loxapine Maroxepin Meperathiepin Mesoridazine Metiapine Metitepine Metoxepin Mosapramine Naranol Octomethothepin Olanzapine Oxyclothepin Oxyprothepin Pentiapine Peradithiepin Perathiepin Perazine Perphenazine Periciazine Pinoxepin Piperacetazine Pipotiazine Piquindone Prochlorperazine Promazine Prothipendyl Quetiapine Savoxepin/Cipazoxapine Sulforidazine Tenilapine Thiethylperazine Thiopropazate Thioridazine Thiothixene Tilozepine Traboxopine Trifluoperazine Triflupromazine Trifluthepin Zotepine Zuclopenthixol

Others	Adosopine Aminopromazine Atiprosin Beloxepin Carbamazepine Carvedilol Cidoxepin Cyclobenzaprine Damotepine Darenzepine Elanzepine Eslicarbazepine acetate Etazepine Licarbazepine Methylene Blue Monatepil Nuvenzepine Oxcarbazepine Oxitriptyline Perlapine Pinadoline Pirenzepine Pirolate Pitrazepin Pizotifen Profenamine Rispenzepine Serazapine Siltenzepine Telenzepine Tipindole Tropatepine Zolenzepine

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Tetracyclic antidepressants