Trazodone
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|
| Systematic (IUPAC) name |
| 2-{3-[4-(3-chlorophenyl)piperazin-1-yl]propyl}[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one |
| Clinical data |
| AHFS/Drugs.com |
monograph |
| MedlinePlus |
a681038 |
| Pregnancy cat. |
C (US) |
| Legal status |
Prescription Only (S4) (AU) POM (UK) ℞-only (US) |
| Routes |
Oral |
| Pharmacokinetic data |
| Bioavailability |
High |
| Metabolism |
Hepatic |
| Half-life |
3-6 hours |
| Excretion |
20% feces,
80% urine |
| Identifiers |
| CAS number |
19794-93-5 Y |
| ATC code |
N06AX05 |
| PubChem |
CID 5533 |
| IUPHAR ligand |
213 |
| DrugBank |
DB00656 |
| ChemSpider |
5332 Y |
| UNII |
YBK48BXK30 Y |
| KEGG |
D08626 Y |
| ChEBI |
CHEBI:9654 Y |
| ChEMBL |
CHEMBL621 Y |
| Chemical data |
| Formula |
C19H22ClN5O |
| Mol. mass |
371.864 g/mol |
SMILES
- Clc4cccc(N3CCN(CCCN1/N=C2/C=C\C=C/N2C1=O)CC3)c4
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InChI
-
InChI=1S/C19H22ClN5O/c20-16-5-3-6-17(15-16)23-13-11-22(12-14-23)8-4-10-25-19(26)24-9-2-1-7-18(24)21-25/h1-3,5-7,9,15H,4,8,10-14H2 Y
Key:PHLBKPHSAVXXEF-UHFFFAOYSA-N Y
|
Y (what is this?) (verify)
|
Trazodone (also sold under the brand names Desyrel, Oleptro, Beneficat, Deprax, Desirel, Molipaxin, Thombran, Trazorel, Trialodine, Trittico, and Mesyrel) is an antidepressant of the serotonin antagonist and reuptake inhibitor (SARI) class. It is a phenylpiperazine compound. Trazodone also has anti-anxiety (anxiolytic) and sleep-inducing (hypnotic) effects.[1] Trazodone has considerably fewer prominent anticholinergic (dry mouth, constipation, tachycardia) and sexual side effects than most of the tricyclic antidepressants (TCAs).
Contents
- 1 History
- 2 Indications
- 2.1 Off-label and investigational uses
- 3 Pharmacology
- 3.1 Binding profile
- 3.2 Correspondence to clinical effects
- 4 Pharmacokinetics
- 5 Warnings
- 6 Precautions
- 7 Pregnancy and lactation
- 8 Side effects
- 8.1 Serious side effects
- 8.1.1 Cardiac arrhythmia
- 8.1.2 Priapism
- 8.1.3 Other
- 9 Occupational hazards
- 10 Laboratory tests
- 11 Drug interactions
- 12 Dosage
- 13 Overdose
- 13.1 Symptoms
- 13.2 Treatment
- 14 Synthesis
- 15 See also
- 16 References
- 17 External links
History[edit source | edit]
Trazodone was originally discovered and developed in Italy in the 1960s by Angelini Research Laboratories as a second-generation antidepressant. It was developed according to the mental pain hypothesis, which was postulated from studying patients and which proposes that major depression is associated with a decreased pain threshold.[2] Trazodone was patented and marketed in many countries all over the world. It was approved by the Food and Drug Administration (FDA) at the end of 1981.
Indications[edit source | edit]
- Anxiety disorder
- Unipolar depression, with or without anxiety
- Bipolar depression, in some circumstances
- Insomnia[3][4][5] (in some countries, this is an off-label use)
- Control of nightmares [6]
Off-label and investigational uses[edit source | edit]
- Fibromyalgia[7]
- Panic disorder[8]
- Diabetic neuropathy[9]
- Bulimia nervosa[10]
- Obsessive-compulsive disorder (OCD)[11][12]
- Alcohol withdrawal[13][14][15]
- Schizophrenia and other psychoses[16][17]
- Complex regional pain syndrome[citation needed]
- Hallucinogen intoxication[18]
Pharmacology[edit source | edit]
Binding profile[edit source | edit]
Trazodone behaves as an antagonist at all of the following receptors except 5-HT1A where it acts as a partial agonist similarly to buspirone and tandospirone but with greater intrinsic activity in comparison:[19][20][21][22][23][24]
- 5-HT1A receptor (Kd = 78 nM)
- 5-HT2A receptor (Ki = 13 nM)
- 5-HT2B receptor (Ki = 74 nM)[25]
- 5-HT2C receptor (Ki = 192 nM)
- α1-adrenergic receptor (Kd = 39 nM)
- α2-adrenergic receptor (Kd = 405 nM)
- H1 receptor (Kd = 725 nM)
It is an inhibitor of the following transporters as well:[26]
The affinities listed are the means of selected values from the references included.
Correspondence to clinical effects[edit source | edit]
Trazodone acts predominantly as a 5-HT2A receptor antagonist to mediate its therapeutic benefits against anxiety and depression.[27] Its inhibitory effects on serotonin reuptake and 5-HT2C receptors are relatively weak (~15-fold lower than for 5-HT2A) and contribute only lightly to its overall effects.[27] Hence, trazodone does not have similar properties to selective serotonin reuptake inhibitors (SSRIs)[27] and is not particularly associated with increased appetite and weight gain, unlike other 5-HT2C antagonists like mirtazapine.[28][29] Moderate 5-HT1A partial agonism (6-fold lower than 5-HT2A) is likely to contribute to trazodone's antidepressant and anxiolytic actions to some extent as well.[23][24][30]
Trazodone's potent α1-adrenergic blockade (~3-fold lower relative to 5-HT2A) may cause some side effects like orthostatic hypotension and sedation.[31] Conversely, along with 5-HT2A antagonism, it may underlie its efficacy as a hypnotic. This seems possible as trazodone's antihistamine activity is relatively weak and probably clinically insignificant; hence, it cannot explain trazodone's sleep-inducing/enhancing effects. Trazodone lacks any affinity for the mACh receptors and therefore does not produce anticholinergic side effects.
mCPP, a non-selective serotonin receptor agonist and serotonin releasing agent, is an active metabolite of trazodone and has been suggested to possibly play a role in its therapeutic benefits.[32][33][34] However, scientific research has not supported this hypothesis, and mCPP may actually antagonize trazodone's efficacy as well as produce additional side effects.[35][36][37][38][39]
Pharmacokinetics[edit source | edit]
Trazodone is well absorbed after oral administration with mean peak blood levels obtained at approximately 1 hour after ingestion. Absorption is somewhat delayed and enhanced by food. The mean blood elimination half-life is biphasic: the first phase's half-life is 3–6 hours, and the following phase's half-life is 5–9 hours. The drug is extensively metabolized with 3 or 4 major metabolites having been identified in the human body, particularly mCPP,[40] which may contribute to the side effect profile of trazodone. mCPP has been shown to activate numerous serotonin receptors, including 5-HT2C. Approximately 70–75% of 14C-labelled trazodone was found to be excreted in the urine within 72 hours.[41] Trazodone is highly protein-bound.
As a consequence of the production of mCPP as a metabolite, patients administered trazodone may test positive on EMIT II urine tests for the presence of MDMA ("ecstasy").[42]
Warnings[edit source | edit]
- If the patient has a known hypersensitivity to trazodone
- If the patient is under eighteen years of age and combines with other antidepressant medications it may increase the possibility of suicidal thoughts or actions.[43]
Precautions[edit source | edit]
Trazodone is metabolized by CYP3A4, a liver enzyme.[40] Inhibition of this enzyme by various other substances may delay its degradation, leading to high blood levels of trazodone. CYP3A4 may be inhibited by many other medications, herbs, and foods, and as such, trazodone may interact with these substances. One drug-food interaction is grapefruit juice. Drinking grapefruit juice is discouraged in patients taking trazodone. One glass of grapefruit juice occasionally is not likely to have this effect on most people, but drinking large amounts, or drinking it regularly is proven to affect trazodone's clearance.
The possibility of suicide in depressed patients remains during treatment and until significant remission occurs. The number of tablets prescribed at any one time should take into account this possibility, and patients with suicidal ideation should never have access to large quantities of trazodone.
Trazodone has been reported to cause seizures in a small number of patients who took it concurrently with medications to control seizures.[44]
While trazodone is not a true member of the SSRI class of antidepressants, it does still share many properties of the SSRIs, especially the possibility of discontinuation syndrome if the medication is stopped too quickly.[45] Care must therefore be taken when coming off the medication, usually by a gradual process of tapering down the dose over a period of time.
Pregnancy and lactation[edit source | edit]
- Pregnancy: Sufficient data in humans is lacking. Use should be justified by the severity of the condition to be treated.[citation needed]
- Lactation: Sufficient data in humans is also lacking. Additionally, trazodone may be found in the maternal milk in significant concentrations. Women should not breastfeed while taking trazodone.[citation needed]
Side effects[edit source | edit]
Adverse reactions reported include the following:[46]
- Headache or heaviness in head
- Nausea, vomiting
- Bad taste in mouth
- Dry mouth
- Stomach pain
- Diarrhea or Constipation
- Changes in appetite or weight
- Weakness or tiredness
- Nervousness
- Decreased ability to concentrate or remember things
- Confusion
- Brain fog or "zombie-like" sensations
- Nightmares
- Muscle pain
- Sweating
- Blurred vision
- Tired, red, or itchy eyes
- Tinnitus (Ringing in ears)
- Restless leg syndrome
Trazodone can enhance libido and in males, increase erectile function.[47] Compared to the reversible MAOI antidepressant drug moclobemide there is significantly more impairment on vigilance with trazodone.[48]
Serious side effects[edit source | edit]
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- Chest pain (angina)
- Fast, pounding, or irregular heartbeat
- Shortness of breath
- Fever, sore throat, chills, or other signs of infection
- Hives
- Skin rash
- Itching
- Difficulty breathing or swallowing (dysphagia)
- Swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs (peripheral edema)
- Hoarseness
- Decreased coordination
- Uncontrollable shaking of a part of the body
- Numbness, burning, or tingling in the arms, legs, hands, or feet
- Dizziness or lightheadedness
- Fainting (syncope)
- Painful erection that lasts longer than normal (priapism)
Cardiac arrhythmia[edit source | edit]
Recent clinical studies in patients with pre-existing cardiac disease indicate that trazodone may be arrhythmogenic in some patients in that population.[citation needed] Arrhythmia identified include isolated PVC's, ventricular couplets, and in two patients short episodes (three to four beats) of ventricular tachycardia. There have also been several post-marketing reports of arrhythmia in trazodone-treated patients who have pre-existing cardiac disease and in some patients who did not have pre-existing cardiac disease. Until the results of prospective studies are available, patients with pre-existing cardiac disease should be closely monitored, particularly for cardiac arrhythmias.[citation needed] Trazodone is not recommended for use during the initial recovery phase of myocardial infarction.[citation needed]
Priapism[edit source | edit]
Trazodone has been associated with the occurrence of priapism, likely due to its antagonism at α-adrenergic receptors.[49] Priapism is a potentially harmful medical condition in which the erect penis does not return to its flaccid state (despite the absence of both physical and psychological stimulation) within four hours.[46] In approximately 33% of the cases reported, surgical intervention was performed and, in a portion of these cases, permanent impairment of erectile function or impotence resulted.[citation needed]
In women, a similar condition of persistent arousal can be caused and is called persistent genital arousal disorder.[50]
Other[edit source | edit]
Rare cases of idiosyncratic hepatotoxicity have been observed, possibly due to the formation of reactive metabolites.[51]
Elevated prolactin concentrations have been observed in patients taking trazodone.[52]
It has been concluded that trazodone impairs motor healing in brain-injured rats.[53]
Occupational hazards[edit source | edit]
Since trazodone may impair the mental and/or physical abilities required for performance of potentially hazardous tasks, such as operating an automobile or machinery, the patient should be cautioned not to engage in such activities while impaired.
Laboratory tests[edit source | edit]
It is recommended that white blood cell and differential counts should be performed in patients who develop sore throat, fever, or other signs of infection or blood dyscrasia and trazodone should be discontinued if the white blood cell or absolute neutrophil count falls below normal.[citation needed]
Drug interactions[edit source | edit]
Trazodone may enhance the effects of alcohol, barbiturates, and other CNS depressants; patients should be cautioned accordingly as trazodone with the combination of another CNS depressant, can result in extreme tiredness and dizziness.
Increased serum digoxin and phenytoin levels have been reported to occur in patients receiving trazodone concurrently with either of those two drugs. Little is known about the interaction between trazodone and general anesthetics; therefore, prior to elective surgery, trazodone should be discontinued for as long as clinically feasible.
Because it is not known whether an interaction will occur between trazodone and monoamine oxidase inhibitors (MAOI's), administration of trazodone should be initiated very cautiously with gradual increase in dosage as required, if an MAOI is given concomitantly or has been discontinued shortly before medication with trazodone is instituted.
Because of the absence of experience, concurrent administration of electroconvulsive therapy should be avoided.
Dosage[edit source | edit]
Trazodone adult and geriatric recommended starting dose is 150 mg once daily, it may be increased by 50 mg every three to four days. The dose may be increased slowly to a maximum of 400 mg daily for outpatients and to 600 mg daily in hospitalized patients. Pediatric initial dose should be 25 – 50 mg and may be increased up to 150 mg if necessary. Adult dosage for sedation and sleep aid is 25 – 50 mg. It is recommended that trazodone be given in a divided dose. If necessary just a single dose, in the evening, may be given.
Overdose[edit source | edit]
Symptoms[edit source | edit]
Overdose of trazodone may cause an increase in incidence or severity of any of the reported adverse reactions, e.g. excessive sedation. Death by deliberate or accidental overdosage has been reported.[54][55] However, trazodone is often used instead of tricyclic antidepressants because it is very difficult to overdose on. Depressed patients are therefore unlikely to complete suicide with trazodone.[56]
Treatment[edit source | edit]
There is no specific antidote for trazodone. Management of overdosage should, therefore, be symptomatic and supportive. Any person suspected of having taken an overdosage should be evaluated at a hospital as soon as possible. Activated charcoal, gastric lavage, and forced diuresis may be useful in facilitating elimination of the drug.
Synthesis[edit source | edit]
- Palazzo, G.; Silvestrini, B.; 1968, U.S. Patent 3,381,009.
- B. Silvestrini, G. Palazzo, DE 164594
See also[edit source | edit]
- Etoperidone
- Lubazodone
- Nefazodone
- Vilazodone
References[edit source | edit]
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- ^ Battaglia; Venturoli RE (2009). "Persistent genital arousal disorder and trazodone. Morphometric and vascular modifications of the clitoris. A case report". J Sex Med 6 (10): 2896–2900. doi:10.1111/j.1743-6109.2009.01418.x. PMID 19674253.
- ^ Kalgutkar AS, Henne KR, Lame ME (June 2005). "Metabolic activation of the nontricyclic antidepressant trazodone to electrophilic quinone-imine and epoxide intermediates in human liver microsomes and recombinant P4503A4". Chem Biol Interact. 155 (1–2): 10–20. doi:10.1016/j.cbi.2005.03.036. PMID 15978881.
- ^ Otani K, Yasui N, Kaneko S (June 1995). "Trazodone treatment increases plasma prolactin concentrations in depressed patients". Int Clin Psychopharmacol 10 (2): 115–7. doi:10.1097/00004850-199506000-00009. PMID 7673654.
- ^ Boyeson MG, Harmon RL. (October 1993). "Effects of trazodone and desipramine on motor recovery in brain-injured rats". American journal of physical medicine & rehabilitation / Association of Academic Physiatrists 72 (5): 286–93. doi:10.1097/00002060-199310000-00007. PMID 8398020.
- ^ Martínez MA, Ballesteros S, Sánchez de la Torre C, Almarza E (2005). "Investigation of a fatality due to trazodone poisoning: case report and literature review". J Anal Toxicol 29 (4): 262–8. PMID 15975258.
- ^ de Meester A, Carbutti G, Gabriel L, Jacques JM (2001). "Fatal overdose with trazodone: case report and literature review". Acta Clin Belg 56 (4): 258–61. PMID 11603256.
- ^ Rakel RE (1987). "The greater safety of trazodone over tricyclic antidepressant agents: 5-year experience in the United States". Psychopathology 20 (Suppl 1): 57–63. doi:10.1159/000284524. PMID 3321131.
External links[edit source | edit]
- U.S. National Library of Medicine: Drug Information Portal - Trazodone
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Antidepressants (N06A)
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|
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
- Mazindol
- Nisoxetine
- Reboxetine
- Talopram
- Talsupram
- Tandamine
- Viloxazine
|
|
|
Dopamine reuptake inhibitors (DRIs)
|
|
|
|
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
|
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Selective serotonin reuptake enhancers (SSREs)
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Others
|
- Indeloxazine
- Teniloxazine
- Tramadol
- Viqualine
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|
Receptor antagonists and/or reuptake inhibitors
|
|
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Serotonin antagonists and reuptake inhibitors (SARIs)
|
- Etoperidone
- Lubazodone
- Nefazodone
- Mepiprazole
- Trazodone
|
|
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Noradrenergic and specific serotonergic antidepressants (NaSSAs)
|
- Aptazapine
- Esmirtazapine
- Mianserin
- Mirtazapine
- Setiptiline/Teciptiline
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Norepinephrine-dopamine disinhibitors (NDDIs)
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Serotonin modulators and stimulators (SMSs)
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Others
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Heterocyclic antidepressants (bi-, tri-, and tetracyclics)
|
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Bicyclics
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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
|
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|
|
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
|
|
|
MAOA-Selective
|
- 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
|
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|
MAOB-Selective
|
- Irreversible: Ladostigil
- Mofegiline
- Pargyline
- Rasagiline
- Selegiline
- Reversible: Lazabemide
- Milacemide
|
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Azapirones and other 5-HT1A 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
|
|
|
|
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dsrd (o, p, m, p, a, d, s), sysi/epon, spvo
|
proc (eval/thrp), drug (N5A/5B/5C/6A/6B/6D)
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|
Anxiolytics (N05B)
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GABAA
PAMs |
|
non-N05B
|
- Alcohols (2M2B, Ethanol (beverage), Ethchlorvynol, Methylpentynol)
- Chlormezanone
- Etifoxine
- Inhalants
- Kavalactones (Kava)
- Skullcap
- Valerenic acid (Valerian)
|
|
|
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
|
|
|
Carbamates
|
- Difebarbamate
- Emylcamate
- Febarbamate
- Mebutamate
- Meprobamate (Carisoprodol, Tybamate)
- Phenprobamate
- Procymate
|
|
|
Nonbenzodiazepines
|
- Abecarnil
- Adipiplon
- Alpidem
- CGS-8216
- CGS-9896
- CGS-13767
- CGS-20625
- Divaplon
- ELB-139
- Fasiplon
- GBLD-345
- Gedocarnil
- L-838,417
- NS-2664
- NS-2710
- Ocinaplon
- Pagoclone
- Panadiplon
- Pipequaline
- RWJ-51204
- SB-205,384
- SL-651,498
- Taniplon
- TP-003
- TP-13
- TPA-023
- Y-23684
- ZK-93423
|
|
|
Pyrazolopyridines
|
- Cartazolate
- Etazolate
- ICI-190,622
- Tracazolate
|
|
|
| α2δ VDCC Blockers |
- Atagabalin
- Gabapentin
- Imagabalin
- PD-217,014
- Pregabalin
- 4-methylpregabalin
|
|
| 5-HT1A Agonists |
- Azapirones: Buspirone
- Gepirone
- Tandospirone; Others: Flesinoxan
- Naluzotan
- Oxaflozane
|
|
| H1 Antagonists |
- Diphenylmethanes: Captodiame
- Hydroxyzine; Others: Brompheniramine
- Chlorphenamine
- Pheniramine
|
|
| CRH1 Antagonists |
- Antalarmin
- CP-154,526
- Pexacerfont
- Pivagabine
|
|
| NK2 Antagonists |
- GR-159,897
- Saredutant
- Ibodutant
|
|
| MCH1 antagonists |
|
|
| mGluR2/3 Agonists |
- Biphenylindanone A
- DCG-IV
- Eglumegad
- HYDIA
- LY-379,268
- LY-404,039
|
|
| mGluR5 NAMs |
- Fenobam
- GRN-529
- MPEP
- MTEP
|
|
| TSPO agonists |
- DAA-1097
- DAA-1106
- Emapunil
- FGIN-127
- FGIN-143
|
|
| σ1 agonists |
- Afobazole
- BD1031
- BD1052
- L-687,384
- Opipramol
- Pentoxyverine
- PRE-084
- SA-4503
- 4-PPBP
|
|
| Others |
- Benzoctamine
- Carbetocin
- Demoxytocin
- Emoxypine
- Mephenoxalone
- Mepiprazole
- Oxanamide
- Oxytocin
- Promoxolane
- Tofisopam
- Trimetozine
- WAY-267,464
|
|
- #WHO-EM
- ‡Withdrawn from market
- Clinical trials:
- †Phase III
- §Never to phase III
|
|
|
dsrd (o, p, m, p, a, d, s), sysi/epon, spvo
|
proc (eval/thrp), drug (N5A/5B/5C/6A/6B/6D)
|
|
|
|
|
Hypnotics/sedatives (N05C)
|
|
GABAA
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 • Clonazepam • Cinolazepam • Climazolam • Doxefazepam • Estazolam • Flunitrazepam • Flurazepam • Flutoprazepam • Haloxazolam • Loprazolam • Lorazepam •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)
|
|
GABAB
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-HT2A
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
|
|
|
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
|
|
|
|
|
|
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
|
|
|
|
|
|
|
|
Enzyme inhibitors
|
|
|
Anabolism
|
|
PAH
|
|
|
|
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
|
|
|
Serotonergics
|
|
|
5-HT1 receptor ligands
|
|
|
5-HT1A
|
- 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-HT1B
|
- 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-HT1D
|
- 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-HT1E
|
- Agonists: Lysergamides: Methysergide; Triptans: Eletriptan; Tryptamines: BRL-54443
- Tryptamine
Antagonists: Metitepine/Methiothepin
|
|
|
5-HT1F
|
- Agonists: Triptans: Eletriptan
- Naratriptan
- Sumatriptan; Tryptamines: 5-MT; Others: BRL-54443
- Bromocriptine
- Lasmiditan
- LY-334,370
Antagonists: Metitepine/Methiothepin
|
|
|
|
|
5-HT2 receptor ligands
|
|
|
5-HT2A
|
|
|
|
5-HT2B
|
- 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-HT2C
|
- 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
- PNU-22394
- 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
- 5-HT4
- 5-HT5
- 5-HT6
- 5-HT7 ligands
|
|
|
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-HT5A
|
- Agonists: Lysergamides: Ergotamine
- LSD; Tryptamines: 5-CT; Others: Valerenic Acid
Antagonists: Asenapine
- Latrepirdine
- Metitepine/Methiothepin
- Ritanserin
- SB-699,551
* Note that the 5-HT5B 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
|
|
|
|
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
|
|
|
|
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
|
|
|
|
|
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)
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|
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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
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|
|
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
|
|
|