Trimipramine

1 : 1 mixture (racemate)
Systematic (IUPAC) name

(RS)-3-(10,11-Dihydro-5H-dibenzob,fazepin-5-yl)-N,N,2-trimethylpropan-1-amine
Identifiers
CAS number	739-71-9
ATC code	N06AA10
PubChem	5584
DrugBank	APRD00498
Chemical data
Formula	C₂₀H₂₆N₂
Mol. mass	294.434
Pharmacokinetic data
Bioavailability	40%
Metabolism	Hepatic
Half life	11 to 23 hours, depending on metabolizer type (rapid or slow)
Excretion	Renal
Therapeutic considerations
Pregnancy cat.	?
Legal status	℞ Prescription only
Routes	Oral, im, iv
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Trimipramine (Surmontil, Rhotrimine, Stangyl) is a psychoactive drug of the tricyclic antidepressant (TCA) chemical class with antidepressant, anxiolytic, antipsychotic, sedative, and analgesic effects.

1 Indications
2 Pharmacology
3 Pharmacokinetics
- 3.1 Forms
- 3.2 Dosage
- 3.3 Parenteral usage
- 3.4 Metabolism
4 Contraindications
5 Abuse & dependence
6 References

Indications

Endogenous and neurotic depression with prominent agitation and anxiety
Depressive and non-depressive insomnia (suitable for long-term treatment)
Adjunctive therapy of alcohol and opioid withdrawal
Chronic pain of malignant and non-malignant origin

Pharmacology

Trimipramine's mechanism of action differs from other TCAs. It is only a moderate reuptake inhibitor of norepinephrine, and a weak reuptake inhibitor of serotonin and dopamine. Its main effects are due to considerable receptor antagonism as follows:

Strong: 5-HT₂, mACh, H₁, H₂, α₁-adrenergic
Moderate: D₂
Weak: 5-HT₁, α₂-adrenergic

The spectrum of effects (strong antidepressant activity, sedation and anxiolysis) and side effects (strong anticholinergic and antiadrenergic symptoms) is similar to those of doxepin. It is also a more effective sedative than amitriptyline. Trimipramine is the only effective drug against insomnia known so far that does not alter the normal sleep architecture. In particular, it does not suppress REM sleep, and dreams are said to brighten during treatment.^{citation needed} However, this can occasionally go too far, as nightmares are an uncommon but possible side effect of the drug. Its relatively strong antagonistic activity at postsynaptic D₂ receptors led to a clinical study trying trimipramine as atypical neuroleptic. There it exerted good antipsychotic activity with a low incidence of extrapyramidal and other side effects. But this study encompassed only 28 patients, so the use of trimipramine as a neuroleptic needs further confirmation and can currently not be recommended. Trimipramine also shows useful activity against chronic pain.

Pharmacokinetics

Forms

Tablets/capsules (10, 12.5, 25, 50, 75, 100, 150 mg)
Liquid concentrate (40 mg/ml)
Injectable concentrate (25 mg)

Dosage

Whilst some standard suggested dosages are published for the treatment of depression, the proper dosage for treatment of insomnia in non-depressive patients, those on alcohol/opioid withdrawal and those with chronic pain may vary greatly and should be discussed with your physician.

Treatment should be initiated at the lowest recommended dose and increased gradually, noting carefully the clinical response and any evidence of intolerance. Days to weeks may elapse before optimal therapeutic effects of Trimipramine are seen. Increasing the dosage usually does not shorten this latent period and may increase the incidence of side effects and patient non-compliance.

In elderly or debilitated patients it may be necessary to check blood pressure and cardiac rhythm, particularly in patients who have unstable cardiovascular function.

Once a satisfactory response has been obtained, the dosage is normally adjusted to the lowest level required to maintain remission and avoid relapse. Medication should be continued for the expected duration of the depressive episode in order to minimize the possibility of relapse following clinical improvement. Afterwards, prophylactic treatment for 1 to 2 years may be indicated, but there are different opinions regarding the optimal dose and length of remission maintenance treatment.

Parenteral usage

Intramuscular injections and slow i.v.-infusions are possible, but have the disadvantage of intensified anticholinergic and antiadrenergic side effects. The advantage may be an earlier onset of action compared to oral dosage. Decreased doses are sufficient with parenteral treatment.

Metabolism

Trimipramine is a racemic compound with two enantiomers.^[1] CYP2C19 is responsible for the demethylation of (D)- and (L)-trimipramine to (D)- (L)-desmethyltrimipramine, respectively, and CYP2D6 is responsible for the 2-hydroxylation of (D)- and (L)-desmethyltrimipramine to (D)- and (L)-2-hydroxydesmethyltrimipramine, respectively.¹ CYP2D6 also metabolizes (L)-trimipramine into (L)-2-hydroxytrimipramine.¹

Contraindications

Absolute:

Concomitant treatment with monoamine oxidase inhibitors (MAOIs)
Known allergy or hypersensitivity to trimipramine or other TCAs
Acute delirum tremens
Untreated closed angle glaucoma
Hypertrophy of the prostate with urine retention
Paralytic ileus

Relative:

Hypertrophy of the prostate without urine retention
Reduced function of the bone marrow
Organic brain disorders
Increased risk of seizures, pre-existing epilepsy
Pre-existing cardial damage, particular some arrhythmias (impulse conductive disorders)

Abuse & dependence

Trimipramine is not an abusable substance nor does it cause psychological dependence.

Withdrawal symptoms frequently seen when treatment with trimipramine is stopped abruptly (agitation, anxiety, insomnia, sometimes activation of mania or rebound depression) are not indicative of addiction and can be avoided by reducing the daily dose of trimipramine gradually by approximately 25% each week. If treatment has to be stopped at once due to medical reasons, the use of a benzodiazepine (e.g., lorazepam, clonazepam, or alprazolam) for a maximum of 4 weeks as needed will usually suppress withdrawal symptoms.

References

This article needs additional citations for verification.
Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (December 2007)

^ ^a ^b Eap CB, Bender S, Gastpar M, et al. (2000). "Steady state plasma levels of the enantiomers of trimipramine and of its metabolites in CYP2D6-, CYP2C19- and CYP3A4/5-phenotyped patients". Ther Drug Monit 22 (2): 209–14. doi:10.1097/00007691-200004000-00012. PMID 10774635. http://meta.wkhealth.com/pt/pt-core/template-journal/lwwgateway/media/landingpage.htm?issn=0163-4356&volume=22&issue=2&spage=209.

Antidepressants (N06A)

Specific Reuptake Inhibitors (RIs), Enhancers (REs), and Releasing Agents (RAs)

Selective Serotonin Reuptake Inhibitors (SSRIs)	Alaproclate • Citalopram • Escitalopram • Femoxetine • Fluvoxamine • Indalpine • Litoxetine • Lubazodone • Paroxetine • Sertraline • Vilazodone • Zimelidine

Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs)	Clovoxamine • Desvenlafaxine • Duloxetine • Milnacipran • Venlafaxine

Serotonin-Norepinephrine-Dopamine Reuptake Inhibitors (SNDRIs)	Brasofensine • BTS-74,398 • Cocaine • Diclofensine • DOV-21,947 • DOV-102,677 • DOV-216,303 • JNJ-7,925,476 • NS-2359 • PRC200-SS • SEP-225,289 • SEP-227,162 • Tesofensine

Norepinephrine Reuptake Inhibitors (NRIs)	Atomoxetine/Tomoxetine • Binedaline • Ciclazindol • Mazindol • Nisoxetine • Reboxetine • Tandamine • Viloxazine

Dopamine Reuptake Inhibitors (DRIs)	Medifoxamine • Vanoxerine

Norepinephrine-Dopamine Reuptake Inhibitors (NDRIs)	Amineptine • Bupropion/Amfebutamone • Cilobamine • Manifaxine • Methylphenidate • Nomifensine • Radafaxine

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 • Tramadol • Viqualine

Receptor Antagonists and/or Reuptake Inhibitors

Serotonin Antagonists and Reuptake Inhibitors (SARIs)	Etoperidone • Nefazodone • Trazodone

Noradrenergic and Specific Serotonergic Antidepressants (NaSSAs)	Mianserin • Mirtazapine • Setiptiline/Teciptiline

Norepinephrine-Dopamine Disinhibitors (NDDIs)	Agomelatine

Serotonin Modulators and Stimulators (SMSs)	Lu AA21004

Tricyclic and Tetracyclic Antidepressants (TCAs/TeCAs)

Tricyclics: Amineptine • Amitriptyline • Amitriptylinoxide • Azepindole • Butriptyline • Cianopramine • Clomipramine • Cyanodothiepin • Demexiptiline • Desipramine • Dibenzepine • Dimetacrine • Dosulepin/Dothiepin • Doxepin • Fluotracen • Hepzidine • Homopipramol • Imipramine • Imipraminoxide • Intriptyline • Iprindole • Ketipramine • Litracen • Lofepramine • Lortalamine • Losindole • Mariptiline • Melitracen • Metapramine • Mezepine • Naranol • Nitroxazepine • Nortriptyline • Noxiptiline • Octriptyline • Opipramol • Propizepine • Protriptyline • Quinupramine • Tianeptine • Tienopramine • Trimipramine; Tetracyclics: Amoxapine • Ciclazindol • Loxapine • Maprotiline • Mazindol • Mianserin • Mirtazapine • Oxaprotiline • Setiptiline/Teciptiline

Monoamine Oxidase Inhibitors (MAOIs)

Nonselective: Benmoxin • Iproclozide • Iproniazid • Isocarboxazid • Mebanazine • Metfendrazine • Nialamide • Octamoxin • Phenelzine • Pheniprazine • Phenoxypropazine • Pivalylbenzhydrazine • Safrazine • Tranylcypromine; MAO_A-Selective: Irreversible: Clorgyline; Reversible: Befloxatone • Brofaromine • Cimoxatone • Harmala Alkaloids (Harmine, Harmaline, Tetrahydroharmine, Harman, Norharman, etc) • Metralindole • Minaprine • Moclobemide • Pirlindole • Toloxatone • Tyrima; MAO_B-Selective: Ladostigil • Lazabemide • Pargyline • Rasagiline • Selegiline

Azapirones and Other 5-HT_1A Receptor Agonists

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

Dietary Supplements (Vitamins, Minerals, Amino Acids, etc)

Ascorbic Acid (Vitamin C) • Fish Oil • Folic Acid (Vitamin B₉) • L-5-HTP (Oxitriptan) • L-DOPA (Levodopa) • L-Methionine • L-Phenylalanine • L-Tryptophan • L-Tyrosine • Magnesium • Melatonin • Niacin/Niacinamide (Vitamin B₃) • Omega-3 Fatty Acids • Pyridoxine (Vitamin B₆) • SAMe • Zinc

Research Compounds and Miscellaneous Agents

5-HT₄R Agonists	RS-67,333

5-HT₇R Antagonists	Amisulpride

α2δ-VDCC Blockers	Gabapentin • Pregabalin

β₃-Adrenoceptor Agonists	Amibegron • Solabegron

σ₁R Agonists	Opipramol

CB₁R Agonists	Nabilone • Tetrahydrocannabinol/Dronabinol

COMT Inhibitors	Entacapone • Tolcapone

CRF₁R Antagonists	Antalarmin • CP-154,526 • Pexacerfont • Pivagabine

D₂/D₃AR Antagonists	Amisulpride • Sulpiride

D₂/D₃/D₄R Agonists	Piribedil • Pramipexole • Ropinirole • Rotigotine

DOR Agonists	BU-48 • Buprenorphine • BW373U86 • DPI-287 • Heroin • Kratom • SNC-80

Enkephalinase Inhibitors	D-Phenylalanine • RB-101

FAAH Inhibitors	Acetaminophen/Paracetamol • AM-404 • URB-597

KOR Antagonists	5-GNTI • Buprenorphine • JDTic • Norbinaltorphimine

MOR Agonists	Buprenorphine • Codeine • Dextropropoxyphene • Dihydrocodeine • Fentanyl • Heroin • Hydrocodone • Hydromorphone • Kratom • Methadone • Morphine • Opium • Oxycodone • Oxymorphone • Pethidine/Meperidine • Tapentadol • Tramadol

MT₁/MT₂R Agonists	Agomelatine • Melatonin • Ramelteon • Tasimelteon

NK₁R Antagonists	Aprepitant • Casopitant • Fosaprepitant • L-733,060 • Maropitant • Vestipitant

NMDAR Antagonists	Dextromethorphan • Ketamine • Magnesium • Memantine • Zinc

PDE4 Inhibitors	Mesembrine (Kanna) • Rolipram

TRPC6 Activators	Adhyperforin (St. John's Wort) • Hyperforin (St. John's Wort)

Anxiolytics (N05B)

GABA_A PAMs

Benzodiazepine	Adinazolam • Alprazolam • Bretazenil • Bromazepam • Camazepam • Chlordiazepoxide • Clobazam • Clonazepam • Clorazepate • Clotiazepam • Cloxazolam • Diazepam • Ethyl Loflazepate • Etizolam • Fludiazepam • Halazepam • Imidazenil • Ketazolam • Lorazepam • Medazepam • Nordazepam • Oxazepam • Pinazepam • Prazepam • Tofisopam

Carbamates	Emylcamate • Mebutamate • Meprobamate (Carisoprodol, Tybamate) • Phenprobamate • Procymate

Nonbenzodiazepines	Abecarnil • Adipiplon • Alpidem • CGS-9896 • CGS-20625 • Divaplon • ELB-139 • Etifoxine • GBLD-345 • Gedocarnil • ICI-190,622 • L-838,417 • NS-2664 • NS-2710 • Ocinaplon • Pagoclone • Panadiplon • Pipequaline • RWJ-51204 • SB-205,384 • SL-651,498 • TP-003 • TP-13 • TPA-023 • Tracazolate • Y-23684 • ZK-93423

Others	Chlormezanone • Etazolate • Ethanol (Alcohol) • Kavalactones (Kava Kava) • Skullcap • Valerenic Acid (Valerian)

α₂δ VDCC Blockers

Gabapentin • Pregabalin

5-HT_1A Agonists

Azapirones: Buspirone • Gepirone • Tandospirone; Others: Flesinoxan • Oxaflozane

H₁ Antagonists

Diphenylmethanes: Captodiame • Hydroxyzine; Others: Brompheniramine • Chlorpheniramine • Pheniramine

CRF₁ Antagonists

Antalarmin • CP-154,526 • Pexacerfont • Pivagabine

NK₂ Antagonists

GR-159,897 • Saredutant

MCH₁ antagonists

ATC-0175 • SNAP-94847

mGluR₂_/₃ Agonists

Eglumegad

mGluR5 NAMs

Fenobam

TSPO agonists

DAA-1097 • DAA-1106 • Emapunil • FGIN-127 • FGIN-143

σ₁ agonists

Afobazole • Opipramol

Others

Benzoctamine • Carbetocin • Demoxytocin • Mephenoxalone • Oxytocin • Promoxolane • Trimetozine • WAY-267,464

Antipsychotics (N05A)

Typicals
(EPS)

Phenothiazines	aliphatics: Chlorpromazine^# • Levomepromazine/Methotrimeprazine • Promazine • Triflupromazine • piperidines: Mesoridazine • Thioridazine/Sulforidazine • Periciazine piperazines: Fluphenazine^# • Perphenazine • Prochlorperazine • Trifluoperazine • Perazine

Butyrophenones	Haloperidol^# • Azaperone • Benperidol • Bromperidol • Droperidol • Fluanisone • Lenperone • Trifluperidol

Indoles	Molindone

Thioxanthenes	Flupentixol • Chlorprothixene • Thiothixene • Zuclopenthixol

Diphenylbutylpiperidines	Fluspirilene • Penfluridol • Pimozide

Benzamides	Amisulpride • Nemonapride • Remoxipride • Sulpiride • Sultopride • Tiapride

Others	Amoxapine • Loxapine • Metitepine/Methiothepin

Atypicals
(5HT)

D₂ selective

Butyrophenones	Melperone

Indoles	Sertindole • Ziprasidone

Other	quinolone (Aripiprazole) • oxepin (Asenapine) • isoxazoles (Iloperidone, Paliperidone, Risperidone) • benzazepine (Mosapramine) • thiazole (Perospirone) • dibenzothiazepines (Clotiapine, Quetiapine) • dibenzothiepin (Zotepine) • Lurasidone^† • Amperozide

D₄ selective

diazepine (Clozapine, Olanzapine)

^#WHO-EM. ^‡Withdrawn from market. CLINICAL TRIALS: ^†Phase III. ^§Never to phase III

Hypnotics/Sedatives (N05C)

GABA_A receptor

Barbiturates

Ultrashort-acting	Methohexital • Thiamylal • Thiopental

Short/intermediate- acting	Allobarbital • Amobarbital • Aprobarbital • Butobarbital • Pentobarbital • Secobarbital • Talbutal

Long-acting	Barbital • Mephobarbital • Phenobarbital

Ungrouped	Cyclobarbital • Ethallobarbital • Heptabarbital • Hexobarbital • Proxibarbal • Reposal • Vinylbital • Vinbarbital

Benzodiazepines

Short-acting	Brotizolam • Cinolazepam • Doxefazepam • Loprazolam • Midazolam • Triazolam

Intermediate-acting	Estazolam • Flunitrazepam • Lormetazepam • Nimetazepam • Temazepam

Long-acting	Flurazepam • Flutoprazepam • Nitrazepam • Quazepam

Dialkylphenols

Fospropofol • Propofol • Thymol

Nonbenzo-
diazepines

CL-218,872 • Eszopiclone • Indiplon • Necopidem • Pazinaclone • ROD-188 • Saripidem • Suproclone • Suriclone • SX-3228 • U-89843A • U-90042 • Zaleplon • Zolpidem • Zopiclone

Piperidinediones

Glutethimide • Methyprylon • Pyrithyldione • Piperidione

Quinazolinones

Afloqualone • Cloroqualone • Diproqualone • Etaqualone • Mebroqualone • Mecloqualone • Methaqualone • Methylmethaqualone

Neuroactive
steroids

Acebrochol • Allopregnanolone • Alphadolone • Alphaxolone • Eltanolone • Ganaxolone • Hydroxydione • Minaxolone • Org 20599 • Org 21465 • Tetrahydrodeoxycorticosterone

Alpha-2 adrenergic
receptor

Alpha-adrenergic agonists

4-NEMD • Clonidine • Dexmedetomidine • Lofexidine • Medetomidine • Romifidine • Tizanidine • Xylazine

Melatonin receptor

Melatonin

Agomelatine • Melatonin • Ramelteon • Tasimelteon

Histamine receptor &
Acetylcholine receptor

Antihistamines &
Anticholinergics

Amitriptyline • Dimenhydrinate • Doxylamine • Hydroxyzine • Diphenhydramine • Bromodiphenhydramine • Carbinoxamine • Doxepin • Orphenadrine • Mianserin • Mirtazapine • Nefazodone • Niaprazine • Phenyltoloxamine • Propiomazine • Pyrilamine • Scopolamine • Trazodone

GABA_B receptor /
GHB receptor

GHB Type

1,4-Butanediol • Aceburic acid • GABOB • gamma-Hydroxybutyric acid • GBL • gamma-Valerolactone

Orexin receptors

Orexin antagonists

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

Other receptors/
ungrouped

Aldehydes	Acetylglycinamide chloral hydrate • Chloral hydrate • Chloralodol • Dichloralphenazone • Paraldehyde • Petrichloral

Alkynes	Centalun • Ethchlorvynol • Ethinamate • Hexapropymate • Methylpentynol

Carbamates	Meprobamate • Carisoprodol • Tybamate • Methocarbamol • Procymate

Other	2-Methyl-2-butanol • Acecarbromal • Acetophenone • Apronal • Bromides • Bromisoval • Carbromal • Chloralose • Clomethiazole • Embutramide • Etomidate • Evoxine • Fenadiazole • Gaboxadol • Loreclezole • Mephenoxalone • Sulfonmethane • Trichloroethanol • Triclofos • Valerian • Valnoctamide

Analgesics (N02A, N02B)

Opioids
See also: Opioids template

Opium & alkaloids thereof	Codeine · Morphine · Opium · Laudanum · Paregoric

Semi-synthetic opium derivatives	Acetyldihydrocodeine · Benzylmorphine · Buprenorphine · Desomorphine · Dihydrocodeine · Dihydromorphine · Ethylmorphine · Diamorphine · Hydrocodone · Hydromorphinol · Hydromorphone · Nicocodeine · Nicodicodeine · Nicomorphine · Oxycodone · Oxymorphone

Synthetic opioids	Alphaprodine · Anileridine · Butorphanol · Dextromoramide · Dextropropoxyphene · Dezocine · Fentanyl · Ketobemidone · Levorphanol · Methadone · Meptazinol · Nalbuphine · Pentazocine · Propoxyphene · Propiram · Pethidine · Phenazocine · Piminodine · Piritramide · Tapentadol · Tilidine · Tramadol

Pyrazolones

Ampyrone/Aminophenazone · Metamizole · Phenazone · Propyphenazone

Cannabinoids

Ajulemic acid · AM404 · Cannabidiol · Cannabis · Nabilone · Nabiximols · Tetrahydrocannabinol

Anilides

Paracetamol (acetaminophen) · Phenacetin · Propacetamol

Non-steroidal
anti-inflammatories
See also: NSAIDs template

Propionic acid class	Fenoprofen · Flurbiprofen · Ibuprofen · Ketoprofen · Naproxen · Oxaprozin

Oxicam class	Meloxicam · Piroxicam

Acetic acid class	Diclofenac · Indometacin · Ketorolac · Nabumetone · Sulindac · Tolmetin

COX-2 inhibitors	Celecoxib · Rofecoxib · Valdecoxib · Parecoxib · Lumiracoxib

Anthranilic acid (fenamate) class	Meclofenamate · Mefenamic acid

Salicylates	Aspirin (Acetylsalicylic acid) · Benorylate · Diflunisal · Ethenzamide · Magnesium salicylate · Salicin · Salicylamide · Salsalate · Trisalate · Wintergreen (Methyl salicylate)

Atypical, adjunct and potentiators,
miscellaneous

Befiradol · Bicifadine · Camphor · Clonidine · Cyclobenzaprine · Duloxetine · Flupirtine · Gabapentin · Glafenine · Hydroxyzine · Menthol · Nefopam · Orphenadrine · Pregabalin · Scopolamine · Tebanicline · Trazodone · Ziconotide

Adrenergics

Receptor
Ligands

α₁	Agonists: Amidephrine • Anisodamine • Anisodine • Cirazoline • Dopamine • Ephedrine • Epinephrine (Adrenaline) • Etilefrine • Indanidine • Isoprenaline • Levonordefrin • Metaraminol • Methoxamine • Methyldopa • Midodrine • Naphazoline • Norepinephrine (Noradrenaline) • Octopamine • Oxymetazoline • Phenylephrine • Phenylpropanolamine • Pseudoephedrine • Synephrine • Tetrahydrozoline Antagonists: Alfuzosin • Arotinolol • Carvedilol • Dihydroergotamine • Doxazosin • Ergotamine • Indoramin • L-765,314 • Labetalol • Moxisylyte • Nantenine • Phentolamine • Phenoxybenzamine • Prazosin • Quetiapine • Silodosin • Talipexole • Tamsulosin • Terazosin • Tolazoline • Trimazosin • Urapidil

α₂	Agonists: (R)-3-Nitrobiphenyline • 4-NEMD • Amitraz • Apraclonidine • Brimonidine • Clonidine • Detomidine • Dexmedetomidine • Dihydroergotamine • Dopamine • Ephedrine • Ergotamine • Epinephrine (Adrenaline) • Etilefrine • Guanabenz • Guanfacine • Guanethidine • Guanoxabenz • Levonordefrin • Lofexidine • Medetomidine • Methyldopa • Mivazerol • Naphazoline • Norepinephrine (Noradrenaline) • Phenylpropanolamine • Pseudoephedrine • Rilmenidine • Romifidine • Talipexole • Tetrahydrozoline • Tizanidine • Tolonidine • Xylazine • Xylometazoline Antagonists: 1-PP • Atipamezole • BRL-44408 • Buspirone • Cirazoline • Efaroxan • Gepirone • Idazoxan • Ipsapirone • Mianserin • Mirtazapine • NAN-190 • Phentolamine • Phenoxybenzamine • Quetiapine • Rauwolscine • SB-269,970 • Setiptiline • Spiroxatrine • Tandospirone • Tolazoline • Yohimbine

β₁	Agonists: Denopamine • Dobutamine • Dopamine • Epinephrine (Adrenaline) • Etilefrine • Levonordefrin • Methyldopa • Norepinephrine (Noradrenaline) Antagonists: Acebutolol • Alprenolol • Amosulalol • Arotinolol • Atenolol • Bupranolol • Carvedilol • Celiprolol • Betaxolol • Bisoprolol • Dichloroisoprenaline • Esmolol • Labetalol • Metipranolol • Metoprolol • Nadolol • Nebivolol • Oxprenolol • Penbutolol • Pindolol • Practolol • Pronethalol • Propranolol • Sotalol • Tertatolol • Timolol • Tilisolol • Xamoterol

β₂	Agonists: Arformoterol • Bambuterol • Bitolterol • Carbuterol • Clenbuterol • Dopamine • Dopexamine • Epinephrine (Adrenaline) • Etilefrine • Fenoterol • Formoterol • Hexoprenaline • Indacaterol • Levonordefrin • Levosalbutamol • Methyldopa • Norepinephrine (Noradrenaline) • Orciprenaline • Pirbuterol • Procaterol • Reproterol • Rimiterol • Ritodrine • Salbutamol (Albuterol) • Salmeterol • Terbutaline • Tulobuterol Antagonists: Alprenolol • Amosulalol • Arotinolol • Bupranolol • Butaxamine • Carvedilol • Dichloroisoprenaline • ICI 118551 • Labetalol • Metipranolol • Nadolol • Oxprenolol • Penbutolol • Pindolol • Pronethalol • Propranolol • Sotalol • Tertatolol • Timolol • Tilisolol

β₃	Agonists: Amibegron • Arotinolol • Dopamine • Epinephrine (Adrenaline) • Etilefrine • Labetalol • Levonordefrin • Methyldopa • Norepinephrine (Noradrenaline) • Solabegron Antagonists: Carvedilol • SR 59230A

β_?	Agonists: Arbutamine • BAAM • Befunolol • Broxaterol • Buphenine • Cimaterol • Ephedrine • Higenamine • Isoetarine • Isoxsuprine • Mabuterol • Methoxyphenamine • Oxyfedrine • Phenylpropanolamine • Prenalterol • Pseudoephedrine • Ractopamine • Tretoquinol • Zilpaterol • Zinterol

Reuptake
Inhibitors

Plasmalemmal

NET Inhibitors	Norepinephrine Reuptake Inhibitors: Atomoxetine (Tomoxetine) • Ciclazindol • Mazindol • Nisoxetine • Reboxetine • Tandamine • Tapentadol • Viloxazine; Norepinephrine-Dopamine Reuptake Inhibitors: Amineptine • Bupropion (Amfebutamone) • Fencamine • Fencamfamine • Lefetamine • LR-5182 • Manifaxine • Methylphenidate • Nomifensine • O-2172 • Radafaxine; Serotonin-Norepinephrine Reuptake Inhibitors: Bicifadine • Desvenlafaxine • Duloxetine • Milnacipran • Sibutramine • Tramadol • 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 • Nortriptyline • Protriptyline • Trimipramine; Tetracyclic Antidepressants: Amoxapine • Maprotiline • Mianserin • Oxaprotiline • Setiptiline; Others: Cocaine • Nefazodone • Nefopam • Ziprasidone

TRPC6 Activators	Adhyperforin • Hyperforin

Vesicular

VMAT Inhibitors

Ibogaine • Reserpine • Tetrabenazine

Releasing
Agents

Morpholines: Phendimetrazine • Phenmetrazine; Oxazolines: 4-Methylaminorex (4-MAR, 4-MAX) • Aminorex • Clominorex • Cyclazodone • Fenozolone • Fluminorex • Pemoline • Thozalinone; Phenethylamines (also Amphetamines, Cathinones, Phentermines, etc): 2-Hydroxyphenethylamine (2-OH-PEA) • 4-Methylamphetamine (4-MA) • 4-Methylmethamphetamine (4-MMA) • Alfetamine • Amfecloral • Amfepentorex • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • β-Methylphenethylamine (β-Me-PEA) • Benzodioxolylbutanamine (BDB) • Benzodioxolylhydroxybutanamine (BOH) • Benzphetamine • Buphedrone • Butylone • Cathine • Cathinone • Clobenzorex • Clortermine • Diethylcathinone (Diethylpropion, Amfepramone) • D-Deprenyl • Dimethoxyamphetamine (DMA) • Dimethoxymethamphetamine (DMMA) • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, Metamfepramone) • Ephedrine (EPH) • Ethcathinone (Ethylpropion) • Ethylamphetamine • Ethylbenzodioxolylbutanamine (EBDB) • Ethylone • Fenethylline • Fenproporex • Flephedrone • Fludorex • Furfenorex • Hordenine • Indanorex • L-Deprenyl (Selegiline) • Lisdexamfetamine • Lophophine (Homomyristicylamine) • Mefenorex • Mephedrone • Mephentermine • Methamphetamine (Desoxyephedrine, Methedrine; Dextromethamphetamine, Levomethamphetamine) • Methcathinone (Methylpropion) • Methedrone • Methoxymethylenedioxyamphetamine (MMDA) • Methoxymethylenedioxymethamphetamine (MMDMA) • Methylbenzodioxolylbutanamine (MBDB) • Methylenedioxyamphetamine (MDA; Tenamfetamine) • Methylenedioxyethylamphetamine (MDEA) • Methylenedioxyhydroxyamphetamine (MDOH) • Methylenedioxymethamphetamine (MDMA) • Methylenedioxymethylphenethylamine (MDMPEA; Homarylamine) • Methylenedioxyphenethylamine (MDPEA; Homopiperonylamine) • Methylone • Ortetamine • Parabromoamphetamine (PBA) • Parachloroamphetamine (PCA) • Parafluoroamphetamine (PFA) • Parafluoromethamphetamine (PFMA) • Parahydroxyamphetamine (PHA) • Paraiodoamphetamine (PIA) • Paramethoxyamphetamine (PMA) • Paramethoxyethylamphetamine (PMEA) • Paramethoxymethamphetamine (PMMA) • Paredrine (Norpholedrine, Oxamphetamine) • Phenethylamine (PEA) • Pholedrine • Phenpentermine • Phenpromethamine • Phentermine • Phenylpropanolamine (PPA) • Prenylamine • Propylamphetamine • Pseudoephedrine (PSE) • Tiflorex (Flutiorex) • Tyramine (TRA) • Xylopropamine • Zylofuramine; Piperazines: 2,5-Dimethoxy-4-bromobenzylpiperazine (2C-B-BZP) • Benzylpiperazine (BZP) • Methoxyphenylpiperazine (MeOPP; Paraperazine) • Methylbenzylpiperazine (MBZP) • Methylenedioxybenzylpiperazine (MDBZP; Piperonylpiperazine) • Parafluorophenylpiperazine (pFPP; Fluoperazine); Others: 2-Amino-1,2-dihydronaphthalene (2-ADN) • 2-Aminoindane (2-AI) • 2-Aminotetralin (2-AT) • 2-Benzylpiperidine (2-BP) • 4-Benzylpiperidine (4-BP) • Clofenciclan • Cyclopentamine • Cypenamine • Cyprodenate • Feprosidnine • Gilutensin • Heptaminol • Hexacyclonate • Indanylaminopropane (IAP) • Isometheptene • Methylhexanamine • Naphthylaminopropane (NAP) • Octodrine • Phthalimidopropiophenone • Propylhexedrine (PHX) • Tuaminoheptane (Tuamine)

Enzyme
Inhibitors

Anabolism

PAH Inhibitors	3,4-Dihydroxystyrene

TH Inhibitors	3-Iodotyrosine • Aquayamycin • Bulbocapnine • Metirosine • Oudenone

AAAD Inhibitors	Benserazide • Carbidopa

DBH Inhibitors	Disulfiram • Nepicastat • Tropolone

PNMT Inhibitors	CGS-19281A • SKF-64139 • SKF-7698

Catabolism

MAO Inhibitors	Nonselective: Benmoxin • Furazolidone • Hydralazine • Iproclozide • Iproniazid • Isocarboxazid • Isoniazid • Linezolid • Mebanazine • Metfendrazine • Nialamide • Octamoxin • Phenelzine • Pheniprazine • Phenoxypropazine • Pivalylbenzhydrazine • Procarbazine • Safrazine • Tranylcypromine; MAO-A Selective: Befloxatone • Brofaromine • Cimoxatone • Clorgiline • Harmala alkaloids (Harmine, Harmaline, Tetrahydroharmine, Harman, Norharman, etc) • Metralindole • Minaprine • Moclobemide • Pirlindole • Toloxatone • Tyrima; MAO-B Selective: D-Deprenyl • L-Deprenyl (Selegiline) • Ladostigil • Lazabemide • Pargyline • Rasagiline * Note that MAO-B inhibitors also influence norepinephrine/epinephrine levels since they inhibit the breakdown of their precursor dopamine.

COMT Inhibitors	Entacapone • 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: Benzofuranylpropylaminopentane (BPAP) • Phenylpropylaminopentane (PPAP); Release Blockers: Bretylium • Guanethidine

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 • 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 • Thiopilocarpine • Vedaclidine • VU-0029767 • VU-0090157 • VU-0152099 • VU-0152100 • VU-0238429 • WAY-132,983 • Xanomeline • YM-796 Antagonists: 3-Quinuclidinyl Benzilate • 4-DAMP • 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 • Elemicin • Etanautine • Etybenzatropine (Ethylbenztropine) • Flavoxate • Himbacine • HL-031,120 • Ipratropium • J-104,129 • Hyoscyamine • Mamba Toxin 3 • Mamba Toxin 7 • Mazaticol • Mebeverine • Methoctramine • Metixene • Myristicin • N-Ethyl-3-Piperidyl Benzilate • N-Methyl-3-Piperidyl Benzilate • Orphenadrine • Otenzepad • Oxybutynin • PBID • PD-102,807 • Phenglutarimide • Phenyltoloxamine • Pirenzepine • Piroheptine • Procyclidine • Profenamine • RU-47,213 • SCH-57,790 • SCH-72,788 • SCH-217,443 • Scopolamine (Hyoscine) • Solifenacin • Telenzepine • Tiotropium • Tolterodine • Trihexyphenidyl • Tripitamine • Tropatepine • Tropicamide • WIN-2299 • Zamifenacin; Others: 1st Generation Antihistamines (Brompheniramine • Chlorpheniramine, Cyclizine, Cyproheptadine, Dimenhydrinate, Diphenhydramine, Doxylamine, Hydroxyzine, Meclizine, 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, Quetiapine, 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 • AR-R17779 • Butyrylcholine • Carbachol • Cotinine • Cytisine • Decamethonium • Desformylflustrabromine • Dianicline • Dimethylphenylpiperazinium • Epibatidine • Epiboxidine • 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 • Sazetidine A • Sebacylcholine • SIB-1508Y • SIB-1553A • SSR-180,711 • Suberylcholine • TC-1698 • TC-1734 • TC-1827 • TC-2216 • TC-5214 • TC-5619 • TC-6683 • Tebanicline • Tropisetron • UB-165 • Varenicline • XY-4083 Antagonists: 18-Methoxycoronaridine • α-Bungarotoxin • α-Conotoxin • Alcuronium • Anatruxonium • Atracurium • Bupropion (Amfebutamone) • 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 • Ketamine • Kynurenic Acid • Levacetylmethadol • Malouetine • Mecamylamine • Memantine • Methadone • Methorphan (Racemethorphan) • Methyllycaconitine • Metocurine • Mivacurium • Morphanol (Racemorphanol) • Neramexane • Pancuronium • Pempidine • Pentamine • Pentolinium • Phencyclidine • Pipecuronium • Radafaxine • Rapacuronium • Rocuronium • Surugatoxin • Suxamethonium (Succinylcholine) • Toxiferine • Trimethaphan • Tropeinium • Tubocurarine • Vecuronium

Reuptake
Inhibitors

Plasmalemmal

CHT Inhibitors

Hemicholinium-3 (Hemicholine)

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: Ambenonium • Donepezil • Edrophonium • Galantamine • Huperzine A (Huperzia Serrata) • Tacrine • Zanapezil Irreversible: Organophosphates: Acephate • Azinphos-Methyl • Bensulide • Cadusafos • Chlorethoxyfos • Chlorfenvinphos • Chlorpyrifos • Chlorpyrifos-Methyl • Coumaphos • Cyclosarin (GF) • Demeton • Demeton-S-Methyl • Diazinon • Dichlorvos • Dicrotophos • Diisopropyl Fluorophosphate (Guthion) • 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 • Phostebupirim • Phoxim • Pirimiphos-Methyl • Sarin (GB) • Soman (GD) • Tabun (GA) • Temefos • Terbufos • Tetrachlorvinphos • Tribufos • Trichlorfon • VE • VG • VM • VR • VX; Others: Demecarium • Onchidal (Onchidella Binneyi)

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

Others

Precursors	Choline (Lecithin) • Citicoline • Dimethylethanolamine • Glycerophosphocholine • Phosphatidylcholine • Phosphatidylethanolamine • Phosphorylcholine

Cofactors	Acetic Acid • Acetyl-L-Carnitine • Acetyl-Coenzyme A • Vitamin B5 (Pantothenic Acid, Pantethine, Pantetheine, Panthenol)

Others	Acetylcholine Releasing Agents: α-Latrotoxin • β-Bungarotoxin; Acetylcholine Release Inhibitors: Botulinum Toxin (Botox); Acetylcholinesterase Reactivators: Pralidoxime

Dopaminergics

Receptor
Ligands

Agonists	Benzazepines: 6-Br-APB • Fenoldopam • SKF-38,393 • SKF-77,434 • SKF-81,297 • SKF-82,958 • SKF-83,959; Ergot-derivatives: Bromocriptine • Cabergoline • Dihydroergocryptine • Lisuride • LSD • Pergolide; Dihydrexidine-derivatives: 2-OH-NPA • A-86,929 • Dihydrexidine • Dinapsoline • Dinoxyline • Doxanthrine; Morphine-derivatives: Apomorphine • Propylnorapomorphine; Piperazines: ABT-724 • Aripiprazole • Piribedil • WAY-100,635; Others: 7-OH-DPAT • 8-OH-PBZI • A-68,930 • A-77,636 • A-412,997 • ABT-670 • Amantadine • Aplindore • CY-208,243 • Etilevodopa • Melevodopa • Memantine • PD-128,907 • PF-219,061 • Pramipexole • Pukateine • Quinpirole • RDS-127 • Rimantadine • Ropinirole • Rotigotine • SKF-89145 • SKF-89626

Antagonists	Typical Antipsychotics: Acepromazine • Azaperone • Benperidol • Bromperidol • Clopenthixol • Chlorpromazine • Chlorprothixene • Droperidol • Flupentixol • Fluphenazine • Fluspirilene • Haloperidol • Loxapine • Mesoridazine • Methotrimeprazine • Molindone • Penfluridol • Perazine • Periciazine • Perphenazine • Pimozide • Prochlorperazine • Promazine • Sulforidazine • Thioridazine • Thiothixene • Trifluoperazine • Triflupromazine • Trifluperidol • Zuclopenthixol; Atypical Antipsychotics: Amisulpride • Asenapine • Clozapine • Iloperidone • Melperone • Olanzapine • Paliperidone • Perospirone • Quetiapine • Risperidone • Sertindole • Sulpiride • Ziprasidone • Zotepine; Antiemetics: AS-8112 • Alizapride • Bromopride • Clebopride • Domperidone • Metoclopramide • Thiethylperazine; Others: Amoxapine • Blonanserin • Buspirone • Butaclamol • N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline • Ecopipam • Eticlopride • Fananserin • Mosapramine • Nafadotride • Nemonapride • Nuciferine • Raclopride • Remoxipride • SB-277,011-A • SCH-23,390 • SKF-83,566 • Spiperone • Spiroxatrine • Stepholidine • Tetrahydropalmatine • Tiapride • UH-232 • Yohimbine

Reuptake
Inhibitors

Plasmalemmal

DAT Inhibitors	Piperazines: DBL-583 • GBR-12,935 • Nefazodone • Vanoxerine; Piperidines: BTCP • Desoxypipradrol • Dextromethylphenidate • Ethylphenidate • Methylnaphthidate • Methylphenidate • Phencyclidine • Pipradrol; Pyrrolidines: Diphenylprolinol • Methylenedioxypyrovalerone (MDPV) • Naphyrone • Prolintane • Pyrovalerone; Tropanes: β-CPPIT • Altropane • Brasofensine • CFT • Cocaine • Dichloropane • Difluoropine • FE-β-CPPIT • FP-β-CPPIT • Ioflupane (¹²³I) • Iometopane • RTI-112 • RTI-113 • RTI-121 • RTI-126 • RTI-150 • RTI-177 • RTI-229 • RTI-336 • Tenocyclidine • Tesofensine • Troparil • Tropoxane • WF-11 • WF-23 • WF-31 • WF-33; Others: Amfonelic Acid • Amineptine • Benzatropine (Benztropine) • Bromantane • BTQ • BTS-74,398 • Bupropion (Amfebutamone) • Ciclazindol • Diclofensine • Dimethocaine • Dizocilpine • DOV-102,677 • DOV-21,947 • DOV-216,303 • Etybenzatropine (Ethylbenztropine) • Fencamine • Fencamfamine • GYKI-52,895 • Indatraline • Ketamine • Lefetamine • LR-5182 • Manifaxine • Mazindol • Medifoxamine • Mesocarb • Nefopam • Nomifensine • NS-2359 • O-2172 • Propylamphetamine • Radafaxine • SEP-225,289 • SEP-227,162 • Sibutramine • Tametraline • Tripelennamine

TRPC6 Activators	Adhyperforin • Hyperforin

Vesicular

VMAT Inhibitors

Deserpidine • Ibogaine • Reserpine • Tetrabenazine

Releasing
Agents

Morpholines: Phendimetrazine • Phenmetrazine; Oxazolines: 4-Methylaminorex (4-MAR, 4-MAX) • Aminorex • Clominorex • Cyclazodone • Fenozolone • Fluminorex • Pemoline • Thozalinone; Phenethylamines (also Amphetamines, Cathinones, Phentermines, etc): 2-Hydroxyphenethylamine (2-OH-PEA) • 4-Methylamphetamine (4-MA) • 4-Methylmethamphetamine (4-MMA) • Alfetamine • Amfecloral • Amfepentorex • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • β-Methylphenethylamine (β-Me-PEA) • Benzodioxolylbutanamine (BDB) • Benzodioxolylhydroxybutanamine (BOH) • Benzphetamine • Buphedrone • Butylone • Cathine • Cathinone • Clobenzorex • Clortermine • D-Deprenyl • Diethylcathinone (Diethylpropion, Amfepramone) • Dimethoxyamphetamine (DMA) • Dimethoxymethamphetamine (DMMA) • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, Metamfepramone) • Ethcathinone (Ethylpropion) • Ethylamphetamine • Ethylbenzodioxolylbutanamine (EBDB) • Ethylone • Fenethylline • Fenproporex • Flephedrone • Fludorex • Furfenorex • Hordenine • Indanorex • Lophophine (Homomyristicylamine) • Mefenorex • Mephedrone • Methamphetamine (Desoxyephedrine, Methedrine; Dextromethamphetamine, Levomethamphetamine) • Methcathinone (Methylpropion) • Methedrone • Methoxymethylenedioxyamphetamine (MMDA) • Methoxymethylenedioxymethamphetamine (MMDMA) • Methylbenzodioxolylbutanamine (MBDB) • Methylenedioxyamphetamine (MDA; Tenamfetamine) • Methylenedioxyethylamphetamine (MDEA) • Methylenedioxyhydroxyamphetamine (MDOH) • Methylenedioxymethamphetamine (MDMA) • Methylenedioxymethylphenethylamine (MDMPEA; Homarylamine) • Methylenedioxyphenethylamine (MDPEA; Homopiperonylamine) • Methylone • Ortetamine • Parabromoamphetamine (PBA) • Parachloroamphetamine (PCA) • Parafluoroamphetamine (PFA) • Parafluoromethamphetamine (PFMA) • Parahydroxyamphetamine (PHA) • Paraiodoamphetamine (PIA) • Paramethoxyamphetamine (PMA) • Paramethoxyethylamphetamine (PMEA) • Paramethoxymethamphetamine (PMMA) • Paredrine (Norpholedrine, Oxamphetamine) • Phenethylamine (PEA) • Pholedrine • Phenpromethamine • Prenylamine • Propylamphetamine • Tiflorex (Flutiorex) • Tyramine (TRA) • Xylopropamine • Zylofuramine; Piperazines: 2,5-Dimethoxy-4-bromobenzylpiperazine (2C-B-BZP) • Benzylpiperazine (BZP) • Methoxyphenylpiperazine (MeOPP; Paraperazine) • Methylbenzylpiperazine (MBZP) • Methylenedioxybenzylpiperazine (MDBZP; Piperonylpiperazine); Others: 2-Amino-1,2-dihydronaphthalene (2-ADN) • 2-Aminoindane (2-AI) • 2-Aminotetralin (2-AT) • 4-Benzylpiperidine (4-BP) • Clofenciclan • Cyclopentamine • Cypenamine • Cyprodenate • Feprosidnine • Gilutensin • Heptaminol • Hexacyclonate • Indanylaminopropane (IAP) • Isometheptene • Methylhexanamine • Naphthylaminopropane (NAP) • Octodrine • Phthalimidopropiophenone • Propylhexedrine (PHX) • Tuaminoheptane (Tuamine)

Enzyme
Inhibitors

Anabolism

PAH Inhibitors	3,4-Dihydroxystyrene

TH Inhibitors	3-Iodotyrosine • Aquayamycin • Bulbocapnine • Metirosine • Oudenone

AAAD / DDC Inhibitors	Benserazide • Carbidopa • Methyldopa

Catabolism

MAO Inhibitors	Nonselective: Benmoxin • Furazolidone • Hydralazine • Iproclozide • Iproniazid • Isocarboxazid • Isoniazid • Linezolid • Mebanazine • Metfendrazine • Nialamide • Octamoxin • Phenelzine • Pheniprazine • Phenoxypropazine • Pivalylbenzhydrazine • Procarbazine • Safrazine • Tranylcypromine; MAO-A Selective: Befloxatone • Brofaromine • Cimoxatone • Clorgiline • Harmala alkaloids (Harmine, Harmaline, Tetrahydroharmine, Harman, Norharman, etc) • Metralindole • Minaprine • Moclobemide • Pirlindole • Toloxatone • Tyrima; MAO-B Selective: D-Deprenyl • L-Deprenyl (Selegiline) • Ladostigil • Lazabemide • Pargyline • Rasagiline

COMT Inhibitors	Entacapone • Tolcapone

DBH Inhibitors	Disulfiram • Nepicastat • Tropolone

Others

Precursors	L-Phenylalanine → L-Tyrosine → L-DOPA (Levodopa)

Cofactors	Ferrous Iron (Fe²⁺) • 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: Benzofuranylpropylaminopentane (BPAP) • Phenylpropylaminopentane (PPAP)

Histaminergics

Receptor
Ligands

H₁	Agonists: 2-Pyridylethylamine • Betahistine • Histamine • HTMT • UR-AK49 Antagonists: 1st Generation: 4-Methyldiphenhydramine • Alimemazine • Antazoline • Azatadine • Bamipine • Benzatropine (Benztropine) • Bepotastine • Bromazine • Brompheniramine • Buclizine • Carbinoxamine • Chlorcyclizine • Chloropyramine • Chlorothen • Chlorpheniramine • Chlorphenoxamine • Cinnarizine • Clemastine • Clobenzepam • Clocinizine • Cyclizine • Cyproheptadine • Dacemazine • Deptropine • Dexbrompheniramine • Dexchlorpheniramine • Dimenhydrinate • Dimetindene • Diphenhydramine • Diphenylpyraline • Doxylamine • Embramine • Etybenzatropine (Ethylbenztropine) • Etymemazine • Histapyrrodine • Hydroxyethylpromethazine • Hydroxyzine • Iproheptine • Isopromethazine • Isothipendyl • Meclizine • Mepyramine (Pyrilamine) • Mequitazine • Methafurylene • Methapyrilene • Methdilazine • Moxastine • Niaprazine • Orphenadrine • Oxatomide • Oxomemazine • Phenindamine • Pheniramine • Phenyltoloxamine • Pimethixene • Promethazine • Pyrrobutamine • Talastine • Thenalidine • Thenyldiamine • Thiazinamium • Thonzylamine • Tolpropamine • Tripelennamine • Triprolidine; 2nd Generation: Acrivastine • Astemizole • Azelastine • Cetirizine • Clemizole • Clobenztropine • Dimebon • Ebastine • Emedastine • Epinastine • Ketotifen • Levocabastine • Loratadine • Mebhydrolin • Mizolastine • Olopatadine • Rupatadine • Setastine • Terfenadine; 3rd Generation: Desloratadine • Fexofenadine • Levocetirizine; Miscellaneous: Tricyclic Antidepressants (Amitriptyline, Doxepin, Trimipramine, etc) • Tetracyclic Antidepressants (Mianserin, Mirtazapine, etc) • Serotonin Antagonists and Reuptake Inhibitors (Trazodone, Nefazodone) • Typical Antipsychotics (Chlorpromazine, Thioridazine, etc) • Atypical Antipsychotics (Clozapine, Olanzapine, Quetiapine, etc)

H₂	Agonists: Amthamine • Betazole • Dimaprit • Histamine • HTMT • Impromidine • UR-AK49 Antagonists: Cimetidine • Famotidine • Lafutidine • Metiamide • Niperotidine • Nizatidine • Ranitidine • Roxatidine

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 • SCH-79,687 • Thioperamide • Tiprolisant • VUF-5,681

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

Reuptake
Inhibitors

Plasmalemmal

.....

Vesicular

VMAT Inhibitors

Ibogaine • Reserpine • Tetrabenazine

Enzyme
Inhibitors

Anabolism

HDC Inhibitors

α-FMH • Brocresine • Catechin • Cyanidanol-3 • McN-A-1293 • ME • Meciadanol • Naringenin • Thiazol-4-yimethoxyamine • Tritoqualine • Zy-15,029

Catabolism

HNMT Inhibitors	Amodiaquine • BW-301U • Diphenhydramine • Harmaline • Metoprine • Quinacrine • SKF-91,488 • Tacrine

DAO Inhibitors	1,4-Diamino-2-butyne • Aminoguanidine

Others

Precursors	L-Histidine

Cofactors	Vitamin B6 (Pyridoxine, Pyridoxamine, Pyridoxal → Pyridoxal Phosphate)

Serotonergics

Receptor
ligands

5-HT₁

5-HT_1A	Agonists: Azapirones: Alnespirone • Binospirone • Buspirone • Eptapirone • Gepirone • Ipsapirone • Perospirone • Tandospirone • Tiospirone • Zalospirone; Lysergamides: Dihydroergotamine • Ergotamine • Methysergide • LSD; Piperazines: Eltoprazine • Flesinoxan • Flibanserin; Tryptamines: 5-CT • 5-MeO-DMT • 5-MT • DMT • Psilocin • Psilocybin; Atypical Antipsychotics: Aripiprazole • Asenapine • Clozapine • Quetiapine • Ziprasidone; Others: 8-OH-DPAT • Befiradol • Dimemebfe • F-11440 • Lesopitron • Lu AA21004 • LY-293,284 • LY-301,317 • MKC-242 • Noroxaflozane • Osemozotan • Oxaflozane • Piclozotan • PRX-00023 • Rauwolscine • Repinotan • RU-24969 • S-15535 • Sarizotan • SSR-181,507 • Sunepitron • U-92016A • Urapidil • Vilazodone • Xaliproden • Yohimbine Antagonists: Beta Blockers: Alprenolol • Cyanopindolol • Iodocyanopindolol • Oxprenolol • Pindobind • Pindolol • Propranolol; Piperazines: Etoperidone • Nefazodone • Trazodone • WAY-100,135 • WAY-100,635; Others: AV965 • BMY-7378 • Dotarizine • Flopropione • GR-46611 • Isamoltane • Lecozotan • Metitepine/Methiothepin • MPPF • NAN-190 • Robalzotan • S-15535 • SB-649915 • 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 • CP-93,129 • CP-94,253 • CP-135,807 • RU-24969 Antagonists: Lysergamides: Metergoline; Others: AR-A000002 • 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-MT; Others: CP-135,807 • CP-286,601 • GR-46611 • L-694,247 • L-772,405 • PNU-109,291 • PNU-142,633 Antagonists: Lysergamides: Metergoline; Others: Alniditan BRL-15572 • 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: Tryptamine Antagonists: Metitepine/Methiothepin

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

5-HT₂

5-HT_2A	Agonists: Lysergamides: ALD-52 • Ergonovine • Lisuride • LA-SS-Az • LSD • Lysergic acid 2-butyl amide • Methysergide; Phenethylamines: 25I-NBMD • 25I-NBOH • 25I-NBOMe • 2C-B • 2C-B-FLY • 2C-E • 2C-I • 2C-T-2 • 2C-T-7 • 2C-T-21 • 2CBCB-NBOMe • 2CBFly-NBOMe • Bromo-DragonFLY • DOB • DOC • DOI • DOM • MDA • MDMA • Mescaline • Myristicin • 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 • Dimemebfe • Medifoxamine • Noroxaflozane • Oxaflozane • PNU-22394 Antagonists: Atypical Antipsychotics: Amperozide • Aripiprazole • Clozapine • Iloperidone • Melperone • Olanzapine • Paliperidone • Pimozide • Quetiapine • Risperidone • Sertindole • Ziprasidone • Zotepine; Typical Antipsychotics: Loxapine • Pipamperone; Antidepressants: Amitriptyline • Amoxapine • Etoperidone • Mianserin • Mirtazapine • Nefazodone • Trazodone; Others: 5-I-R91150 • AC-90179 • Altanserin • AMDA • APD-215 • Blonanserin • Cinanserin • Cyproheptadine • Deramciclane • Dotarizine • Eplivanserin • Fananserin • Flibanserin • Ketanserin • KML-010 • Lubazodone • Metitepine/Methiothepin • Nantenine • Pimavanserin • Pizotifen • Rauwolscine • Ritanserin • Sarpogrelate • Setoperone • Spiperone • Spiramide • SR-46349B • Volinanserin • Xylamidine • Yohimbine

5-HT_2B	Agonists: Oxazolines: 4-Methylaminorex • Aminorex; Phenethylamines: Chlorphentermine • DOB • DOC • DOI • DOM • Fenfluramine • MDA • MDMA • Norfenfluramine; Tryptamines: 5-CT • 5-MT • α-Methyl-5-HT; Others: BW-723C86 • Cabergoline • mCPP • Pergolide • PNU-22394 • Ro60-0175 Antagonists: Agomelatine • Asenapine • EGIS-7625 • Ketanserin • Lisuride • LY-272,015 • Metitepine/Methiothepin • 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 • Myristicin; 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 • AL-38022A • CP-809,101 • Dimemebfe • Lorcaserin• Medifoxamine • MK-212 • Noroxaflozane • ORG-37,684 • Oxaflozane • PNU-22394 • Ro60-0175 • Vabicaserin • WAY-629 • WAY-161,503 • YM-348 Antagonists: Atypical Antipsychotics: Clozapine • Iloperidone • Melperone • Olanzapine • Paliperidone • Pimozide • Quetiapine • Risperidone • Sertindole • Ziprasidone • Zotepine; Typical Antipsychotics: Chlorpromazine • Loxapine • Pipamperone; Antidepressants: Agomelatine • Amitriptyline • Amoxapine • Etoperidone • Fluoxetine • Mianserin • Mirtazapine • Nefazodone • Nortriptyline • Trazodone; Others: Cinanserin • Cyproheptadine • Deramciclane • Dimebolin • Dotarizine • Eltoprazine • FR-260,010 • Ketanserin • Ketotifen • Metitepine/Methiothepin • Methysergide • Pizotifen • Ritanserin • RS-102,221 • 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 • RS-56812 • SR-57,227 • SR-57,227-A • YM-31636
Antagonists: Antiemetics: AS-8112 • Alosetron • Azasetron • Batanopride • Bemesetron • Cilansetron • Dolasetron • Granisetron • Lerisetron • Ondansetron • Palonosetron • Ramosetron • Renzapride • Tropisetron • Zacopride • Zatosetron; Atypical Antipsychotics: Clozapine • Olanzapine • Quetiapine; Tetracyclic Antidepressants: Amoxapine • Mianserin • Mirtazapine; Others: ICS-205,930 • Lu AA21004 • MDL-72,222 • Memantine • Ricasetron

5-HT₄

Agonists: Gastroprokinetic Agents: Cisapride • Metoclopramide • Mosapride • Prucalopride • Renzapride • Tegaserod • Zacopride; Others: 5-MT • BIMU-8 • CJ-033,466 • PRX-03140 • RS-67333 • RS-67506 • TD-5108
Antagonists: GR-113,808 • GR-125,487 • L-Lysine • Piboserod • RS-39604 • RS-67532 • SB-203,186

5-HT₅

5-HT_5A	Agonists: Lysergamides: Ergotamine • LSD; Tryptamines: 5-CT; Others: Valerenic Acid Antagonists: Asenapine • Dimebolin • Metitepine/Methiothepin • Ritanserin • SB-699,551

5-HT_5B*	Agonists: Lysergamides: Ergotamine • LSD Antagonists: Metitepine/Methiothepin * Note that the 5-HT_5B receptor is not functional in humans.

5-HT₆

Agonists: Lysergamides: Lisuride • LSD • Metergoline; Tryptamines: 5-CT • 5-MT • E-6801 • E-6837 • EMD-386,088 • EMDT • LY-586,713 • WAY-181,187 • WAY-208,466
Antagonists: Antidepressants: Amitriptyline • Amoxapine • Clomipramine • Doxepin • Mianserin • Nortriptyline; Atypical Antipsychotics: Aripiprazole • Asenapine • Clozapine • Fluperlapine • Iloperidone • Olanzapine • Tiospirone; Typical Antipsychotics: Chlorpromazine • Loxapine; Others: BGC20-760 • BVT-5182 • BVT-74316 • Dimebolin • EGIS-12233 • GW-742,457 • Ketanserin • Metitepine/Methiothepin • MS-245 • PRX-07034 • Ritanserin • Ro 04-6790 • Ro 63-0563 • SB-258,585 • SB-271,046 • SB-357,134 • SB-399,885

5-HT₇

Agonists: Lysergamides: LSD; Tryptamines: 5-CT • 5-MT; Others: 8-OH-DPAT • AS-19 • Bifeprunox • LP-12 • LP-44 • Sarizotan
Antagonists: Antidepressants: Amitriptyline • Amoxapine • Clomipramine • Imipramine • Maprotiline • Mianserin; Atypical Antipsychotics: Amisulpride • Aripiprazole • Clozapine • Olanzapine • Risperidone • Sertindole • Tiospirone • Ziprasidone • Zotepine; Typical Antipsychotics: Chlorpromazine • Loxapine; Others: EGIS-12233 • LY-215,840 • Mesulergine • Metergoline • 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

Reuptake
inhibitors

Plasmalemmal

SERT inhibitors	Selective Serotonin Reuptake Inhibitors (SSRIs): Alaproclate • Citalopram • Dapoxetine • Desmethylcitalopram • Desmethylsertraline • Elzasonan • Escitalopram • Femoxetine • Fluoxetine • Fluvoxamine • Indalpine • Litoxetine • Lu AA21004 • Lubazodone • Norfluoxetine • Paroxetine • RTI-353 • Sertraline • Vilazodone • Zimelidine; Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs): Bicifadine • Desvenlafaxine • Duloxetine • Milnacipran • Venlafaxine; Serotonin-Norepinephrine-Dopamine Reuptake Inhibitors (SNDRIs): Brasofensine • Diclofensine • DOV-102,677 • DOV-21,947 • DOV-216,303 • NS-2359 • SEP-225,289 • SEP-227,162 • Tesofensine; Tricyclic Antidepressants (TCAs): Amitriptyline • Butriptyline • Cianopramine • Clomipramine • Desipramine • Dosulepin • Doxepin • Imipramine • Lofepramine • Nortriptyline • Protriptyline • Trimipramine; Tetracyclic Antidepressants (TeCAs): Amoxapine; Piperazines: Nefazodone • Trazodone; Antihistamines: Brompheniramine • Chlorpheniramine • Diphenhydramine • Mepyramine (Pyrilamine) • Pheniramine • Tripelennamine; Opioids: Meperidine (Pethidine) • Methadone • Propoxyphene; Others: Cocaine • Cyclobenzaprine (CBZ) • Dextromethorphan (DXM) • Mesembrine • Nefopam • SB-649,915 • Sibutramine • Ziprasidone

TRPC6 activators	Adhyperforin • Hyperforin

Vesicular

VMAT Inhibitors

Ibogaine • Reserpine • Tetrabenazine

Releasing
agents

Aminoindanes: 5-Iodoaminoindane (5-IAI) • Ethyltrifluoromethylaminoindane (ETAI) • Methylenedioxyaminoindane (MDAI) • Methylenedioxymethylaminoindane (MDMAI) • Methoxymethylaminoindane (MMAI) • Trifluoromethylaminoindane (TAI); Aminotetralins: 6-Chloroaminotetralin (6-CAT) • 8-Hydroxydipropylaminotetralin (8-OH-DPAT) • Methylenedioxyaminotetralin (MDAT); Oxazolines: 4-Methylaminorex (4-MAR, 4-MAX) • Aminorex • Clominorex • Fluminorex; Phenethylamines (also Amphetamines, Cathinones, Phentermines, etc): 4-Methylthioamphetamine (4-MTA) • Benzodioxolylbutanamine (BDB) • Benzodioxolylhydroxybutanamine (BOH) • Brephedrone • Butylone • Chlorphentermine • Diethylcathinone (Diethylpropion, Amfepramone) • Dimethoxyamphetamine (DMA) • Dimethoxymethamphetamine (DMMA) • Dimethylcathinone (Dimethylpropion, Metamfepramone) • Ethylbenzodioxolylbutanamine (EBDB) • Ethylone • Fenfluramine (Dexfenfluramine) • Flephedrone • Lophophine (Homomyristicylamine) • Mephedrone • Methedrone • Methoxymethylamphetamine (MMA) • Methoxymethylenedioxyamphetamine (MMDA) • Methoxymethylenedioxymethamphetamine (MMDMA) • Methylbenzodioxolylbutanamine (MBDB) • Methylenedioxyamphetamine (MDA; Tenamfetamine) • Methylenedioxyethylamphetamine (MDEA) • Methylenedioxyhydroxyamphetamine (MDOH) • Methylenedioxymethamphetamine (MDMA) • Methylenedioxymethylphenethylamine (MDMPEA; Homarylamine) • Methylenedioxyphenethylamine (MDPEA; Homopiperonylamine) • Methylone • Norfenfluramine • Parabromoamphetamine (PBA) • Parachloroamphetamine (PCA) • Parafluoroamphetamine (PFA) • Parafluoromethamphetamine (PFMA) • Parahydroxyamphetamine (PHA) • Paraiodoamphetamine (PIA) • Paramethoxyamphetamine (PMA) • Paramethoxyethylamphetamine (PMEA) • Paramethoxymethamphetamine (PMMA); Piperazines: 2,5-Dimethoxy-4-bromobenzylpiperazine (2C-B-BZP) • Benzylpiperazine (BZP) • Metachlorophenylpiperazine (mCPP) • Methoxyphenylpiperazine (MeOPP; Paraperazine) • Methylbenzylpiperazine (MBZP) • Methylenedioxybenzylpiperazine (MDBZP; Piperonylpiperazine) • Parafluorophenylpiperazine (pFPP; Fluoperazine) • Trifluoromethylphenylpiperazine (TFMPP); Quinolines: PK-7059 • Viqualine; Tryptamines: α-Ethyltryptamine (αET; Etryptamine) • α-Methyltryptamine (αMT; Metryptamine); Others: 5-Aminopropyldihydrobenzofuran (5-APDB; 5-Desoxy-MDA) • Indanylaminopropane (IAP) • Naphthylaminopropane (NAP) • Tramadol

Enzyme
inhibitors

Anabolism

TPH inhibitors	AGN-2979 • Fenclonine

AAAD inhibitors	Benserazide • Carbidopa

Catabolism

MAO Inhibitors

Nonselective: Benmoxin • Furazolidone • Hydralazine • Iproclozide • Iproniazid • Isocarboxazid • Isoniazid • Linezolid • Mebanazine • Metfendrazine • Nialamide • Octamoxin • Phenelzine • Pheniprazine • Phenoxypropazine • Pivalylbenzhydrazine • Procarbazine • Safrazine • Tranylcypromine; MAO-A Selective: Befloxatone • Brofaromine • Cimoxatone • Clorgiline • Harmala alkaloids (Harmine, Harmaline, Tetrahydroharmine, Harman, Norharman, etc) • Metralindole • Minaprine • Moclobemide • Pirlindole • 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: Benzofuranylpropylaminopentane (BPAP) • Phenylpropylaminopentane (PPAP); Reuptake enhancers: Tianeptine

v • d • e Tricyclics

Antidepressants	Amineptine • Amitriptyline • Amitriptylinoxide • Amoxapine • Azepindole • Butriptyline • Cianopramine • Ciclazindol • Clomipramine • Cyanodothiepin • Demexiptiline • Desipramine • Dibenzepine • Dimetacrine • Dosulepin/Dothiepin • Doxepin • Fluotracen • Hepzidine • Homopipramol • Imipramine • Imipraminoxide • Intriptyline • Iprindole • Ketipramine • Litracen • Lofepramine • Lortalamine • Losindole • Loxapine • Maprotiline • Mariptiline • Mazindol • Melitracen • Metapramine • Mezepine • Mianserin • Mirtazapine • Naranol • Nitroxazepine • Nortriptyline • Noxiptiline • Octriptyline • Opipramol • Oxaprotiline • Propizepine • Protriptyline • Quinupramine • Setiptiline/Teciptiline • Tianeptine • Tienopramine • Trimipramine

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

Antipsychotics	Amoxapine • Asenapine • Carpipramine • Chlorpromazine • Chlorprothixene • Clocapramine • Clomacran • Clotiapine • Clozapine • Flupentixol • Fluphenazine • Homopipramol • Levomepromazine/Methotrimeprazine • Loxapine • Maroxepin • Mesoridazine • Metitepine/Methiothepin • Mosapramine • Naranol • Olanzapine • Perazine • Perphenazine • Periciazine • Prochlorperazine • Promazine • Quetiapine • Sulforidazine • Thioridazine • Thiothixene • Trifluoperazine • Triflupromazine • Zotepine • Zuclopenthixol

Others	Carvedilol • Cyclobenzaprine • Pizotifen

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Trimipramine

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