yohimbine: Definition from Answers.com

Yohimbine

Systematic (IUPAC) name
17α-hydroxy-yohimban-16α- carboxylic acid methyl ester
Clinical data
Trade names	Yocon
Pregnancy cat.	?
Legal status	OTC
Routes	Oral
Identifiers
CAS number	146-48-5^Y
ATC code	G04BE04 QV03AB93
PubChem	CID 8969
IUPHAR ligand	102
DrugBank	DB01392
ChemSpider	8622^Y
UNII	2Y49VWD90Q^Y
ChEBI	CHEBI:10093^Y
ChEMBL	CHEMBL15245^Y
Chemical data
Formula	C₂₁H₂₆N₂O₃
Mol. mass	354.44 g/mol (base) 390.90 g/mol (hydrochloride)
SMILES	eMolecules & PubChem
InChI InChI=1S/C21H26N2O3/c1-26-21(25)19-15-10-17-20-14(13-4-2-3-5-16(13)22-20)8-9-23(17)11-12(15)6-7-18(19)24/h2-5,12,15,17-19,22,24H,6-11H2,1H3/t12-,15-,17-,18-,19+/m0/s1^Y Key:BLGXFZZNTVWLAY-SCYLSFHTSA-N^Y
Y(what is this?) (verify)

Yohimbine is an alkaloid with stimulant and aphrodisiac effects found naturally in Pausinystalia yohimbe (Yohimbe). It is also found naturally in Rauwolfia serpentina (Indian Snakeroot), Alchornea floribunda (Niando), along with several other active alkaloids. Yohimbine has been used as both an over-the-counter dietary supplement in herbal extract form and prescription medicine in pure form for the treatment of sexual dysfunction. Yohimbine was explored as a remedy for type 2 diabetes in animal and human models carrying polymorphisms of the α_2A-adrenergic receptor gene.^[1]

Contents

1 Indications
2 Pharmacology
3 Production
4 Adverse effects
5 See also
6 References
7 External links

Indications

Sexual

The NIH states that yohimbine hydrochloride is the standardized form of yohimbine that is available as a prescription medicine in the United States, and has been shown in human studies to be effective in the treatment of male impotence.^[2]

Yohimbine Hydrochloride, USP—a standardized form of yohimbine—is a prescription medicine that has been used to treat erectile dysfunction.^[3] Controlled studies suggest that it is not always an effective treatment for impotence, and evidence of increased sex drive (libido) is anecdotal only.^[4]

It cannot be excluded that orally administered yohimbine can have a beneficial effect in some patients with ED. The conflicting results available may be attributed to differences in drug design, patient selection, and definitions of positive response. However, generally, available results of treatment are not impressive.^[5]

Yohimbine blocks the pre- and post-synaptic alpha-2 adrenoceptors. Blockade of post-synaptic alpha-2 adrenoceptors leads to minor corpora cavernosa smooth muscle relaxation. In fact the majority of adrenoceptors in the corpora cavernosa are alpha-1. Blockade of pre-synaptic alpha-2 adrenoceptors leads to increased release of neurotransmitters in the Central Nervous System and in the corpora cavernosa penis such as nitric oxide, noradrenaline and dopamine. Whether Nitric Oxide released in the corpora cavernosa has a relaxing effect, noradrenaline has a much powerful constricting effect by stimulating the unblocked alpha-1 adrenoceptors. Concomitant use of an alpha-1 blocking agent will prevent constriction caused by the increased adrenergic stimulation.^[6]

Pausinystalia Yohimbe (Yohimbe) doesn't contain just Yohimbine. It contains around 55 other alkaloids and Yohimbine accounts for 1% to 20% of total alkaloids. Among them Corynanthine is an alpha-1 adrenoceptor blocker. Hence the use of Yohimbe extract in sufficient dosages may provide concomitant alpha-1 and alpha-2 adrenoceptors blockade and thus may better enhance erections than Yohimbine alone.^[6]

Yohimbine has been shown to be effective in the reversal of sexual satiety and exhaustion in male rats.^[7] Yohimbine has also been shown to increase the volume of ejaculated semen in dogs, with the effect lasting at least five hours after administration.^[8] Yohimbine has been shown to be effective in the treatment of orgasmic dysfunction in men.^[9]

Fat loss

According to one study, oral yohimbine supplementation may actuate significant fat loss in athletes.^[10] Numerous bodybuilding supplement companies sell formulations of yohimbine for transdermal delivery to effect a local reduction of adipose tissue, although the experimental evidence for its efficacy is limited.^[11]^[12]

Other uses

Yohimbine has also been used for the treatment of sexual side effects caused by some antidepressants (SSRIs), female hyposexual disorder, as a blood pressure boosting agent in autonomic failure, xerostomia, and as a probe for noradrenergic activity.

The addition of yohimbine to fluoxetine or venlafaxine has also been found to potentiate the antidepressant action of both of these agents.^[13]

Yohimbine has been used to facilitate recall of traumatic memories in the treatment of post traumatic stress disorder (PTSD).^[14] Use of yohimbine outside therapeutic settings may not be appropriate for persons suffering from PTSD.^[15] In pharmacology, yohimbine is used as a probe for α₂-adrenoceptor. In veterinary medicine, yohimbine is used to reverse anesthesia from the drug xylazine in small and large animals.

Pharmacology

Yohimbine has high affinity for the α₂-adrenergic receptor, moderate affinity for the α₁-adrenergic, 5-HT_1A, 5-HT_1B, 5-HT_1D, 5-HT_1F, 5-HT_2B, and D₂ receptors, and weak affinity for the 5-HT_1E, 5-HT_2A, 5-HT_5A, 5-HT₇, and D₃ receptors.^[16]^[17] It behaves as an antagonist at α₁-adrenergic, α₂-adrenergic, 5-HT_1B, 5-HT_1D, 5-HT_2A, 5-HT_2B, and D₂, and as a partial agonist at 5-HT_1A.^[16]^[18]^[19]^[20] Its intrinsic activities at the other sites listed are unclear/unknown, but it is probably mostly antagonistic at them.

Production

Yohimbine is the principal alkaloid of the bark of the West African evergreen Pausinystalia yohimbe (formerly Corynanthe yohimbe), family Rubiaceae (Madder family). There are 31 other yohimbane alkaloids found in Yohimbe. In Africa, yohimbe has traditionally been used as an aphrodisiac.^[3] However, it is very important to note that while the terms yohimbine, yohimbine hydrochloride, and yohimbe bark extract are related, they are not interchangeable.^[2]

The main active chemical present in yohimbe bark is yohimbine HCl (indole alkaloid), found in the bark of the Pausinystalia yohimbe tree.

However, the levels of yohimbine that are present in yohimbe bark extract are variable and often very low.^[2] Therefore, although yohimbe bark has been used traditionally to reduce male erectile dysfunction, there is not enough scientific evidence to form a definitive conclusion in this area.

The tree is currently threatened with extinction in its native habitat due to international demand.^{[citation needed]} Its conservation is difficult because the bioactivity of the tree has led many Western governments to declare it a proscribed species.

Adverse effects

Higher doses of oral yohimbine may create numerous side effects, such as rapid heart rate, high blood pressure, overstimulation, insomnia and/or sleeplessness. Some effects in rare cases were panic attacks, hallucinations, headaches, dizziness, and skin flushing.^[21]

More serious adverse effects may include seizures and renal failure. Yohimbine should not be consumed by anyone with liver, kidney, heart disease, or a psychological disorder.^[21]

The therapeutic index of yohimbine is quite low; the range between an effective dose and a dangerous dose is very narrow.^[21] This may also lead to precipitation of panic disorder type reactions.

Yohimbine in combination with modafinil is frequently associated with nausea, dangerous acute rapid heart beat, and acute increased blood pressure. Yohimbine exhibits some degree of MAOI activity while modafinil has been shown to increase levels of various monamines, and therefore could result in severe risk of dangerous side effects.

References

^ Rosengren, A. H.; Jokubka, R.; Tojjar, D.; Granhall, C.; Hansson, O.; Li, D.-Q.; Nagaraj, V.; Reinbothe, T. M. et al. (2009). "Overexpression of Alpha2A-Adrenergic Receptors Contributes to Type 2 Diabetes". Science 327 (5962): 217–20. doi:10.1126/science.1176827. PMID 19965390.
^ ^a ^b ^c "Yohimbe: MedlinePlus Supplements". nlm.nih.gov. November 19, 2010. http://www.nlm.nih.gov/medlineplus/druginfo/natural/patient-yohimbe.html. Retrieved December 13, 2010.
^ ^a ^b Yohimbe. National Center for Complementary and Alternative Medicine.
^ Andersson KE (September 2001). "Pharmacology of penile erection". Pharmacological Reviews 53 (3): 417–50. PMID 11546836. http://pharmrev.aspetjournals.org/cgi/pmidlookup?view=long&pmid=11546836.
^ Andersson, Karl-Erik; Steers, William D. (1998). "The pharmacological basis of sexual therapeutics". In Morales, Alvaro. Erectile dysfunction: issues in current pharmacotherapy. London: Martin Dunitz. pp. 97–124 [114]. ISBN 978-1-85317-577-0. http://books.google.co.uk/books?id=VXPxffpHiXMC&pg=PA97.
^ ^a ^b Saenz De Tejada, I; Kim, NN; Goldstein, I; Traish, AM (2000). "Regulation of pre-synaptic alpha adrenergic activity in the corpus cavernosum". International journal of impotence research 12 Suppl 1: S20–25. PMID 10845761.
^ Fernández-Guasti A, Rodríguez-Manzo G (July 2003). "Pharmacological and physiological aspects of sexual exhaustion in male rats". Scandinavian Journal of Psychology 44 (3): 257–63. doi:10.1111/1467-9450.00343. PMID 12914589.
^ Yonezawa A, Yoshizumii M, Ebiko M, Amano T, Kimura Y, Sakurada S (October 2005). "Long-lasting effects of yohimbine on the ejaculatory function in male dogs". Biomedical Research 26 (5): 201–6. doi:10.2220/biomedres.26.201. PMID 16295696.
^ Adeniyi AA, Brindley GS, Pryor JP, Ralph DJ (May 2007). "Yohimbine in the treatment of orgasmic dysfunction". Asian Journal of Andrology 9 (3): 403–7. doi:10.1111/J.1745-7262.2007.00276.x. PMID 17486282.
^ Ostojic SM (2006). "Yohimbine: the effects on body composition and exercise performance in soccer players". Research in Sports Medicine 14 (4): 289–99. doi:10.1080/15438620600987106. PMID 17214405.
^ http://www.mesomorphosis.com/articles/volk/yohimbine-02.htm
^ Yohimbe Info and Products at Bodybuilding.com
^ Dhir, A; Kulkarni, SK (2007). "Effect of addition of yohimbine (alpha-2-receptor antagonist) to the antidepressant activity of fluoxetine or venlafaxine in the mouse forced swim test". Pharmacology 80 (4): 239–43. doi:10.1159/000104877. PMID 17622775.
^ van der Kolk, Bessel A. (1995). "The Treatment of Post Traumatic Stress Disorder". In Hobfoll, Stevan E.; De Vries, Marten W.. Extreme stress and communities: impact and intervention. Boston: Kluwer Academic Publishers. pp. 421–44. ISBN 978-0-7923-3468-2. http://books.google.com/books?id=sVuMSVEY83UC&pg=PA421.
^ Morgan CA, Grillon C, Southwick SM et al. (February 1995). "Yohimbine facilitated acoustic startle in combat veterans with post-traumatic stress disorder". Psychopharmacology 117 (4): 466–71. doi:10.1007/BF02246220. PMID 7604149.
^ ^a ^b Millan MJ, Newman-Tancredi A, Audinot V et al. (February 2000). "Agonist and antagonist actions of yohimbine as compared to fluparoxan at alpha(2)-adrenergic receptors (AR)s, serotonin (5-HT)(1A), 5-HT(1B), 5-HT(1D) and dopamine D(2) and D(3) receptors. Significance for the modulation of frontocortical monoaminergic transmission and depressive states". Synapse 35 (2): 79–95. doi:10.1002/(SICI)1098-2396(200002)35:2<79::AID-SYN1>3.0.CO;2-X. PMID 10611634.
^ "PDSP Ki Database". http://pdsp.med.unc.edu/pdsp.php#search.
^ Arthur JM, Casañas SJ, Raymond JR (June 1993). "Partial agonist properties of rauwolscine and yohimbine for the inhibition of adenylyl cyclase by recombinant human 5-HT1A receptors". Biochemical Pharmacology 45 (11): 2337–41. doi:10.1016/0006-2952(93)90208-E. PMID 8517875.
^ Kaumann AJ (June 1983). "Yohimbine and rauwolscine inhibit 5-hydroxytryptamine-induced contraction of large coronary arteries of calf through blockade of 5 HT2 receptors". Naunyn-Schmiedeberg's Archives of Pharmacology 323 (2): 149–54. doi:10.1007/BF00634263. PMID 6136920.
^ Baxter GS, Murphy OE, Blackburn TP (May 1994). "Further characterization of 5-hydroxytryptamine receptors (putative 5-HT2B) in rat stomach fundus longitudinal muscle". British Journal of Pharmacology 112 (1): 323–31. PMC 1910288. PMID 8032658. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1910288.
^ ^a ^b ^c Prescription for Nutritional Healing, fourth edition Phyllis A. Balch, CNC

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α₁	Agonists: 5-FNE • 6-FNE • Amidephrine • Anisodamine • Anisodine • Cirazoline • Dipivefrine • Dopamine • Ephedrine • Epinephrine (Adrenaline) • Etilefrine • Ethylnorepinephrine • Indanidine • Levonordefrin • Metaraminol • Methoxamine • Methyldopa • Midodrine • Naphazoline • Norepinephrine (Noradrenaline) • 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 • Indoramin • Ketanserin • L-765,314 • Labetalol • Mephendioxan • Metazosin • Monatepil • Moxisylyte (Thymoxamine) • 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, trazodone, nefazodone, etoperidone, and mepiprazole 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 (Adrenaline) • Esproquin • Etilefrine • Ethylnorepinephrine • Guanabenz • Guanfacine • Guanoxabenz • Levonordefrin • Lofexidine • Medetomidine • Methyldopa • Mivazerol • Naphazoline • Norepinephrine (Noradrenaline) • 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 and gepirone (via metabolite 1-PP) antagonize α₂-adrenergic receptors as well.

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

Reuptake inhibitors

NET	Selective norepinephrine reuptake inhibitors: Amedalin • Atomoxetine (Tomoxetine) • Ciclazindol • Daledalin • 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 • EXP-561 • Fezolamine • Ginkgo biloba • Indeloxazine • Nefazodone • Nefopam • Pridefrine • Tapentadol • Tedatioxetine • Teniloxazine • Tramadol • Ziprasidone

VMAT	Ibogaine • Reserpine • Tetrabenazine

Releasing agents

Morpholines: Fenbutrazate • Morazone • Phendimetrazine • Phenmetrazine; Oxazolines: 4-Methylaminorex • Aminorex • Clominorex • Cyclazodone • Fenozolone • Fluminorex • Pemoline • Thozalinone; Phenethylamines (also amphetamines, cathinones, phentermines, etc): 2-OH-PEA • 4-CAB • 4-FA • 4-FMA • 4-MA • 4-MMA • Alfetamine • Amfecloral • Amfepentorex • Amfepramone • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • β-Me-PEA • BDB • Benzphetamine • BOH • Buphedrone • Butylone • Cathine • Cathinone • Clobenzorex • Clortermine • D-Deprenyl • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, metamfepramone) • DMA • DMMA • EBDB • Ephedrine • Ethcathinone • Ethylamphetamine • Ethylone • Famprofazone • Fenethylline • Fenproporex • Flephedrone • Fludorex • Furfenorex • Hordenine • IAP • IMP • L-Deprenyl (Selegiline) • Lisdexamfetamine • Lophophine • MBDB • MDA (Tenamfetamine) • MDEA • MDMA • MDMPEA • MDOH • MDPEA • Mefenorex • Mephedrone • Mephentermine • Methamphetamine (Dextromethamphetamine, Levomethamphetamine) • Methcathinone • Methedrone • Methylone • NAP • Ortetamine • Paredrine • pBA • pCA • Pentorex (Phenpentermine) • Phenethylamine • Pholedrine • Phenpromethamine • Phentermine • Phenylpropanolamine • pIA • Prenylamine • Propylamphetamine • Pseudoephedrine • Tiflorex • Tyramine • Xylopropamine • Zylofuramine; Piperazines: 2C-B-BZP • BZP • MBZP • mCPP • MDBZP • MeOPP • pFPP; Others: 2-Amino-1,2-dihydronaphthalene • 2-Aminoindane • 2-Aminotetralin • 2-Benzylpiperidine • 4-Benzylpiperidine • 5-IAI • Clofenciclan • Cyclopentamine • Cypenamine • Cyprodenate • Feprosidnine • Gilutensin • Heptaminol • Hexacyclonate • Indanorex • Isometheptene • Methylhexanamine • Octodrine • Phthalimidopropiophenone • Propylhexedrine (Levopropylhexedrine) • Tuaminoheptane

Enzyme inhibitors

Anabolism

PAH	3,4-Dihydroxystyrene

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

AAAD	Benserazide • Carbidopa • 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: D-Deprenyl • Selegiline (L-Deprenyl) • Ladostigil • Lazabemide • Milacemide • Mofegiline • Pargyline • Rasagiline • Safinamide * Note that MAO-B inhibitors also influence norepinephrine/epinephrine levels since they inhibit the breakdown of their precursor dopamine.

COMT	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: BPAP • PPAP; Release blockers: Bethanidine • Bretylium • Guanadrel • Guanazodine • Guanclofine • Guanethidine • Guanoxan; Toxins: Oxidopamine (6-Hydroxydopamine)

List of adrenergic drugs

Dopaminergics

Receptor ligands

Agonists	Adamantanes: Amantadine • Memantine • Rimantadine; Aminotetralins: 7-OH-DPAT • 8-OH-PBZI • Rotigotine • UH-232; Benzazepines: 6-Br-APB • Fenoldopam • SKF-38,393 • SKF-77,434 • SKF-81,297 • SKF-82,958 • SKF-83,959; Ergolines: Bromocriptine • Cabergoline • Dihydroergocryptine • Lisuride • LSD • Pergolide; Dihydrexidine derivatives: 2-OH-NPA • A-86,929 • Ciladopa • Dihydrexidine • Dinapsoline • Dinoxyline • Doxanthrine; Others: A-68,930 • A-77636 • A-412,997 • ABT-670 • ABT-724 • Aplindore • Apomorphine • Aripiprazole • Bifeprunox • BP-897 • CY-208,243 • Dizocilpine • Etilevodopa • Flibanserin • Ketamine • Melevodopa • Modafinil • Pardoprunox • Phencyclidine • PD-128,907 • PD-168,077 • PF-219,061 • Piribedil • Pramipexole • Propylnorapomorphine • Pukateine • Quinagolide • Quinelorane • Quinpirole • RDS-127 • Ro10-5824 • Ropinirole • Rotigotine • Roxindole • Salvinorin A • SKF-89,145 • Sumanirole • Terguride • Umespirone • WAY-100,635

Antagonists	Typical antipsychotics: Acepromazine • Azaperone • Benperidol • Bromperidol • Clopenthixol • Chlorpromazine • Chlorprothixene • Droperidol • Flupentixol • Fluphenazine • Fluspirilene • Haloperidol • Loxapine • Mesoridazine • Methotrimeprazine • Nemonapride • Penfluridol • Perazine • Periciazine • Perphenazine • Pimozide • Prochlorperazine • Promazine • Sulforidazine • Sulpiride • Sultopride • Thioridazine • Thiothixene • Trifluoperazine • Triflupromazine • Trifluperidol • Zuclopenthixol; Atypical antipsychotics: Amisulpride • Asenapine • Blonanserin • Cariprazine • Carpipramine • Clocapramine • Clorotepine • Clozapine • Gevotroline • Iloperidone • Lurasidone • Melperone • Molindone • Mosapramine • Olanzapine • Paliperidone • Perospirone • Piquindone • Quetiapine • Remoxipride • Risperidone • Sertindole • Tiospirone • Ziprasidone • Zotepine; Antiemetics: AS-8112 • Alizapride • Bromopride • Clebopride • Domperidone • Metoclopramide • Thiethylperazine; Others: Amoxapine • Buspirone • Butaclamol • Ecopipam • EEDQ • Eticlopride • Fananserin • L-745,870 • Nafadotride • Nuciferine • PNU-99,194 • Raclopride • Sarizotan • SB-277,011-A • SCH-23,390 • SKF-83,959 • Sonepiprazole • 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 • Difemetorex • 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: Adrafinil • Armodafinil • Amfonelic acid • Amineptine • Benzatropine (Benztropine) • Bromantane • BTQ • BTS-74,398 • Bupropion (Amfebutamone) • Ciclazindol • Diclofensine • Dimethocaine • Diphenylpyraline • Dizocilpine • DOV-102,677 • DOV-21,947 • DOV-216,303 • Etybenzatropine (Ethylbenztropine) • EXP-561 • Fencamine • Fencamfamine • Fezolamine • GYKI-52,895 • Indatraline • Ketamine • Lefetamine • Levophacetoperane • LR-5182 • Manifaxine • Mazindol • Medifoxamine • Mesocarb • Modafinil • Nefopam • Nomifensine • NS-2359 • O-2172 • Pridefrine • Propylamphetamine • Radafaxine • SEP-225,289 • SEP-227,162 • Sertraline • Sibutramine • Tametraline • Tedatioxetine • Tripelennamine

Vesicular

VMAT inhibitors	Deserpidine • Ibogaine • Reserpine • Tetrabenazine

Releasing agents

Morpholines: Fenbutrazate • Morazone • 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-CAB • 4-Methylamphetamine (4-MA) • 4-Methylmethamphetamine (4-MMA) • Alfetamine • Amfecloral • Amfepentorex • Amfepramone • Amphetamine (Dextroamphetamine, Levoamphetamine) • Amphetaminil • β-Methylphenethylamine (β-Me-PEA) • Benzodioxolylbutanamine (BDB) • Benzodioxolylhydroxybutanamine (BOH) • Benzphetamine • Buphedrone • Butylone • Cathine • Cathinone • Clobenzorex • Clortermine • D-Deprenyl • Dimethoxyamphetamine (DMA) • Dimethoxymethamphetamine (DMMA) • Dimethylamphetamine • Dimethylcathinone (Dimethylpropion, metamfepramone) • Ethcathinone (Ethylpropion) • Ethylamphetamine • Ethylbenzodioxolylbutanamine (EBDB) • Ethylone • Famprofazone • Fenethylline • Fenproporex • Flephedrone • Fludorex • Furfenorex • Hordenine • 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) • 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) • 5-IAI • Clofenciclan • Cyclopentamine • Cypenamine • Cyprodenate • Feprosidnine • Gilutensin • Heptaminol • Hexacyclonate • Indanylaminopropane (IAP) • Indanorex • Isometheptene • Methylhexanamine • Naphthylaminopropane (NAP) • Octodrine • Phthalimidopropiophenone • Propylhexedrine (Levopropylhexedrine) • Tuaminoheptane (Tuamine)

Enzyme inhibitors

Anabolism

PAH inhibitors	3,4-Dihydroxystyrene

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

AAAD/DDC inhibitors	Benserazide • Carbidopa • Genistein • Methyldopa

Catabolism

MAO inhibitors	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 • Methylene Blue • Metralindole • Minaprine • Moclobemide • Pirlindole • Sercloremine • Tetrindole • Toloxatone • Tyrima; MAO-B selective: D-Deprenyl • L-Deprenyl (Selegiline) • Ladostigil • Lazabemide • Milacemide • Pargyline • Rasagiline • Safinamide

COMT inhibitors	Entacapone • Tolcapone

DBH inhibitors	Disulfiram • Dopastin • Fusaric acid • 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); Toxins: Oxidopamine (6-Hydroxydopamine)

List of dopaminergic drugs

Serotonergics

5-HT₁ receptor ligands

5-HT_1A	Agonists: Azapirones: Alnespirone • Binospirone • Buspirone • Enilospirone • Eptapirone • Gepirone • Ipsapirone • Perospirone • Revospirone • Tandospirone • Tiospirone • Umespirone • Zalospirone; Antidepressants: Etoperidone • Nefazodone • Trazodone • Vortioxetine; Antipsychotics: Aripiprazole • Asenapine • Clozapine • Quetiapine • Ziprasidone; Ergolines: Dihydroergotamine • 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 • 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 • PRX-00023 • Robalzotan • S-15535 • SB-649,915 • SDZ 216-525 • Spiperone • Spiramide • Spiroxatrine • UH-301 • WAY-100,135 • WAY-100,635 • Xylamidine

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

5-HT_1D	Agonists: Lysergamides: Dihydroergotamine • Methysergide; Triptans: Almotriptan • Avitriptan • Eletriptan • Frovatriptan • Naratriptan • Rizatriptan • Sumatriptan • Zolmitriptan; Tryptamines: 5-CT • 5-Ethyl-DMT • 5-MT • 5-(Nonyloxy)tryptamine; Others: CP-135,807 • CP-286,601 • GR-46611 • L-694,247 • L-772,405 • PNU-109,291 • PNU-142,633 Antagonists: Lysergamides: Metergoline; Others: Alniditan • BRL-15,572 • Elzasonan • GR-127,935 • Ketanserin • LY-310,762 • LY-367,642 • LY-456,219 • LY-456,220 • Metitepine/Methiothepin • Ritanserin • Yohimbine • Ziprasidone

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

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

5-HT₂ receptor ligands


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

5-HT_2B	Agonists: Oxazolines: 4-Methylaminorex • Aminorex; Phenethylamines: Chlorphentermine • Cloforex • DOB • DOC • DOI • DOM • Fenfluramine • 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 • PRX-08066 • Rauwolscine • Ritanserin • RS-127,445 • Sarpogrelate • SB-200,646 • SB-204,741 • SB-206,553 • SB-215,505 • SB-221,284 • SB-228,357 • SDZ SER-082 • Tegaserod • Yohimbine

5-HT_2C	Agonists: Phenethylamines: 2C-B • 2C-E • 2C-I • 2C-T-2 • 2C-T-7 • 2C-T-21 • DOB • DOC • DOI • DOM • MDA • MDMA • Mescaline; Piperazines: Aripiprazole • mCPP • TFMPP; Tryptamines: 5-CT • 5-MeO-α-ET • 5-MeO-α-MT • 5-MeO-DET • 5-MeO-DiPT • 5-MeO-DMT • 5-MeO-DPT • 5-MT • α-ET • α-Methyl-5-HT • α-MT • Bufotenin • DET • DiPT • DMT • DPT • Psilocin • Psilocybin; Others: A-372,159 • 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 • 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 • 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 • Vortioxetine • Xenon

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

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

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

5-HT₇	Agonists: Lysergamides: LSD; Tryptamines: 5-CT • 5-MT • Bufotenin; Others: 8-OH-DPAT • AS-19 • Bifeprunox • E-55888 • LP-12 • LP-44 • RU-24,969 • Sarizotan Antagonists: Lysergamides: 2-Bromo-LSD • Bromocriptine • Dihydroergotamine • Ergotamine • Mesulergine • Metergoline • Methysergide; Antidepressants: Amitriptyline • Amoxapine • Clomipramine • Imipramine • Maprotiline • Mianserin; Atypical antipsychotics: Amisulpride • Aripiprazole • 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 • Panuramine • Paroxetine • Pirandamine • RTI-353 • Seproxetine • Sertraline • Tedatioxetine • 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 • 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 • 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) • Flephedrone • IAP • IMP • 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 • 2-BZP • 3-MeOPP • BZP • DCPP • MBZP • mCPP • MDBZP • MeOPP • Mepiprazole • pCPP • pFPP • pTFMPP • TFMPP; Tryptamines: 4-Methyl-αET • 4-Methyl-αMT • 5-CT • 5-MeO-αET • 5-MeO-αMT • 5-MT • αET • αMT • DMT • Tryptamine (itself); Others: Indeloxazine • Tramadol • Viqualine

Enzyme inhibitors

Anabolism

TPH	AGN-2979 • Fenclonine

AAAD	Benserazide • Carbidopa • Genistein • Methyldopa

Catabolism

MAO

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

Others

Precursors	L-Tryptophan → 5-HTP

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

Others	Activity enhancers: BPAP • PPAP; Reuptake enhancers: Tianeptine

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	Yohimbine tablets
	Yohimbine Hydrochloride Oral tablet
	Loratadine, Pseudoephedrine Sulfate Oral tablet, extended release 12 hour

	Why women cant take yohimbine?
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yohimbine

yo·him·bine

Yohimbine

yohimbine

yohimbine

yohimbine

Yohimbine

Indications

Sexual

Fat loss

Other uses

Pharmacology

Production

Adverse effects

See also

References

External links