yohimbine

A poisonous alkaloid, C₂₁H₂₆N₂O₃, derived from the bark of a tree, Corynanthe yohimbe, and formerly used as an aphrodisiac, a local anesthetic, and a mydriatic.

[New Latin yohimbe, specific epithet of Corynanthe yohimbe, species of tree from which it is derived (of Cameroonian Bantu origin; akin to Duala (Bantu language of Cameroon) djombe) + –INE².]

An alkaloid, the active principle comes from the bark of Corynanthe johimbe. It produces a competitive blockage of limited duration of α-adrenergic receptors. It has also been used for its alleged aphrodisiac properties.

Brand names: Aphrodyne®, Erex™, Viril-Lam™, Yocon®, Yohimar™

Chemical formula:

Drug Forms:
• Yohimbine Hydrochloride Oral tablet (below)
• Yohimbine tablets

Español:
• Clorhidrato de yohimbina, Tableta oral
• Tabletas de yohimbina

Yohimbine Hydrochloride Oral tablet

What is this medicine?

YOHIMBINE is used to treat erectile dysfunction (ED) in men.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
• depression or other mental problems
• heart disease, angina, high blood pressure, a history of heart attack, or other heart problems
• if you are female (this medicine is not for use in women)
• kidney disease
• liver disease
• stomach disease
• an unusual or allergic reaction to yohimbine, other medicines, foods, dyes, or preservatives

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take your doses at regular intervals. Do not take your medicine more often than directed.

This medicine is not for use in children.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

What may interact with this medicine?

Do not take this medicine with any of the following medications:
• MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate

This medicine may also interact with the following:
• ephedra, Ma huang
• green tea
• medicines for depression, anxiety, or psychotic disturbances
• medicines for high blood pressure

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medicine?

If you feel this medicine is not working for you, do not change the dose. Talk to your doctor or health care professional.

If you experience symptoms of nausea, dizziness, chest pain or arm pain during sexual activity after taking this medicine, you should refrain from further activity and call your doctor or health care professional as soon as possible.

This medicine can interact with certain foods that contain tyramine to produce severe headaches, a rise in blood pressure, or irregular heart beat. Foods that contain significant amounts of tyramine include aged cheeses; meats like liver, pepperoni, salami or other sausages; beer and ale (including alcohol-free beer); red wine; sherry; hard liquor or liqueurs; and fava or broad bean pods. Ask your doctor or health care professional, pharmacist, or nutritionist for a complete listing of tyramine-containing foods.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
• anxiety or agitation
• chest pain or palpitations
• increased blood pressure
• increased heart rate
• vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
• dizziness
• flushing
• headache
• irritability
• nausea
• nervousness or restlessness
• sweating
• tremor

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medicine?

Keep out of reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

Last updated: 7/1/2002

Important Disclaimer: The drug information provided here is for educational purposes only. It is intended to supplement, not substitute for, the diagnosis, treatment and advice of a medical professional. This drug information does not cover all possible uses, precautions, side effects and interactions. It should not be construed to indicate that this or any drug is safe for you. Consult your medical professional for guidance before using any prescription or over the counter drugs.

An α2 adrenoceptor antagonist used to reverse sedation produced by α2 adrenoceptor agonists such as xylazine.

• y. challenge test — used as a test for cataplexy in dogs; after administration, there is a marked reduction in the number and severity of clinical signs.

Yohimbine
Systematic (IUPAC) name
17α-hydroxy-yohimban-16α- carboxylic acid methyl ester
Identifiers
CAS number	146-48-5
ATC code	G04BE04
PubChem	8969
ChemSpider	8622
Chemical data
Formula	C21H26N2O3
Mol. mass	354.44 g/mol (base) 390.90 g/mol (hydrochloride)
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	?
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status	OTC
Routes	?

Yohimbine is a tryptamine alkaloid and is the active chemical constituent of the medicinal herb Pausinystalia yohimbe (formerly Corynanthe yohimbe), also known as yohimbe or yohimbe bark. Yohimbine is a stimulant drug and purportedly has aphrodisiac qualities.

Contents 1 Function 1.1 Aphrodisiac 1.2 Other uses 2 Pharmacology 3 Production 4 Adverse effects 5 References 6 External links

Function

Aphrodisiac

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.^[1]

Yohimbine Hydrochloride, USP—a standardized form of yohimbine—is a prescription medicine that has been used to treat erectile dysfunction.^[2] Controlled studies suggest that it is not always an effective treatment for impotence, and evidence of increased sex drive (libido) is anecdotal only.^[3]

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.

– Review of literature on Yohimbine studies 2000., (Morales, 2000b)

Yohimbine has been shown to be effective in the reversal of sexual satiety and exhaustion in male rats.^[4] Yohimbine has also been shown to increase the volume of ejaculated semen in dogs, with the effect lasting at least five hours after administration.^[5] Yohimbine has been shown to be effective in the treatment of orgasmic dysfunction in men.^[6]

Other uses

Yohimbine hydrochloride 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.

Yohimbine has been used to facilitate recall of traumatic memories in the treatment of posttraumatic stress disorder (PTSD).^[7] Use of yohimbine outside therapeutic settings may not be appropriate for persons suffering from PTSD.^[8]

According to one study, oral yohimbine supplementation may actuate significant fat loss in athletes.^[9] Some internet shops sell expensive formulations of yohimbine for transdermal delivery to effect a local reduction of adipose tissue, although there is no experimental evidence that it is effective. Demand for products of this kind is frequently found in the bodybuilding community.

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 α_2A-adrenergic, α_2B-adrenergic, and α_2C-adrenergic receptors, moderate affinity for the 5-HT_1A, 5-HT_1B, 5-HT_1D, 5-HT_2B, and D₂ receptors, and weak affinity for the D₃ receptor.^[10] Yohimbine also has unknown but significant affinity for the 5-HT_2A receptor. Yohimbine behaves as an antagonist at all receptors except for the 5-HT_1A, 5-HT_1D, and 5-HT_2A receptors, where it acts as a weak partial agonist.^[10]

Production

Yohimbine is the principal alkaloid of the bark of the West African evergreen Pausinystalia yohimbe Pierre (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.^[2] However, it is very important to note that while the terms yohimbine, yohimbine hydrochloride, and yohimbe bark extract are related, they are not interchangeable.^[1]

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.^[1] 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.

Adverse effects

Yohimbine has significant side effects, such as anxiety reactions. According to the Mayo Clinic, yohimbine can be dangerous if used in excessive amounts.^[11]

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.^[12]

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.^[12]

The range between an effective dose and a dangerous dose is very narrow; too large of a dosage can be harmful and toxic.^[12] This may also lead to precipitation of panic disorder type reactions.

References

1. ^ ^{a b c} [1] National Institutes of Health
2. ^ ^{a b} [2] National Center for Complementary and Alternative Medicine
3. ^ "Pharmacology of Penile Erection — Andersson 53 (3): 417 — Pharmacological Reviews". http://pharmrev.aspetjournals.org/cgi/content/full/53/3/417#SEC4_4_6_2. Retrieved on 2007-12-23. 
4. ^ Fernández-Guasti A, Rodríguez-Manzo G. Pharmacological and physiological aspects of sexual exhaustion in male rats. Scand J Psychol. 2003 Jul;44(3):257-63. PMID 12914589
5. ^ Yonezawa A, Yoshizumii M, Ebiko M, Amano T, Kimura Y, Sakurada S. (2005). "Long-lasting effects of yohimbine on the ejaculatory function in male dogs". Biomed Res 26 (5): 201–6. doi:10.2220/biomedres.26.201. PMID 16295696. 
6. ^ Adeniyi AA, Brindley GS, Pryor JP, Ralph DJ. (2007). "Yohimbine in the treatment of orgasmic dysfunction". Asian J Androl 9 (3): 403–7. doi:10.1111/j.1745-7262.2007.00276.x. PMID 17486282. 
7. ^ "Approaches to the Treatment of PTSD (1995)". http://www.traumatherapie.de/users/vanderkolk/kolk2.html. 
8. ^ "Yohimbine use in a natural setting: effects on posttraumatic stress disorder". http://www.ncbi.nlm.nih.gov/pubmed/7604149. 
9. ^ "Yohimbine: the effects on body composition and exercise performance in soccer players". http://www.ncbi.nlm.nih.gov/pubmed/17214405. 
10. ^ ^{a b} Millan MJ, Newman-Tancredi A, Audinot V, Cussac D, Lejeune F, Nicolas JP, Cogé F, Galizzi JP, Boutin JA, Rivet JM, Dekeyne A, Gobert A. (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. PMID 10611634. 
11. ^ [3] Mayo Clinic
12. ^ ^{a b c} Prescription for Nutritional Healing, fourth edition Phyllis A. Balch, CNC

External links

• Erectile Dysfunction and Yohimbine
• Erowid Yohimbe Vault
• "Yohimbe bark extract" (MedlinePlus)
• Effectiveness Rating and Review of Yohimbe by Pharmacists

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v • d • e Serotonergics Receptor Ligands 5-HT1 5-HT1A Agonists: Azapirones: Alnespirone • Binospirone • Buspirone • Gepirone • Ipsapirone • Perospirone • Tandospirone • Tiospirone • Zalospirone; Lysergamides: Dihydroergotamine • Ergotamine • Methysergide • LSD; Phenethylamines: MDA • MDMA; Piperazines: Eltoprazine • Flesinoxan • Flibanserin; Tryptamines: 5-CT • 5-MeO-DMT • 5-MT • DMT • Psilocin • Psilocybin • Rauwolscine • Yohimbine; Atypical Antipsychotics: Aripiprazole • Asenapine • Clozapine • Quetiapine • Ziprasidone; Others: 8-OH-DPAT • Befiradol • F-11440 • Lesopitron • Lu AA21004 • LY-293,284 • LY-301,317 • MKC-242 • Osemozotan • Piclozotan • PRX-00023 • Repinotan • RU-24969 • S-15535 • Sarizotan • SSR-181,507 • Sunepitron • U-92016A • Urapidil • Vilazodone • Xaliproden Antagonists: Beta Blockers: Alprenolol • Cyanopindolol • Iodocyanopindolol • Oxprenolol • Pindobind • Pindolol • Propranolol; Piperazines: Nefazodone • Trazodone • WAY-100,135 • WAY-100,635; Others: AV965 • BMY-7378 • Dotarizine • GR-46611 • Isamoltane • Lecozotan • Methiothepin • MPPF • NAN-190 • Robalzotan • S-15535 • SB-649915 • SDZ 216-525 • Spiperone • Spiramide • Spiroxatrine • UH-301 • WAY-100,135 • WAY-100,635 • Xylamidine 5-HT1B Agonists: Lysergamides: Dihydroergotamine • Ergotamine • Methysergide; 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Others: 5-I-R91150 • AC-90179 • Altanserin • AMDA • APD-215 • Blonanserin • Cinanserin • Cyproheptadine • Deramciclane • Dotarizine • Eplivanserin • Fananserin • Flibanserin • Ketanserin • KML-010 • Lubazodone • Methiothepin • Nantenine • Pimavanserin • Pizotifen • Ritanserin • Sarpogrelate • Setoperone • Spiperone • Spiramide • SR-46349B • Volinanserin • Xylamidine • Yohimbine 5-HT2B Agonists: Oxazolines: 4-Methylaminorex • Aminorex; Phenethylamines: Chlorphentermine • DOB • DOC • DOI • DOM • Fenfluramine • MDA • MDMA • Norfenfluramine; Tryptamines: 5-CT • 5-MT • α-Methyl-5-HT; Others: BW-723C86 • Cabergoline • mCPP • Pergolide • PNU-22394 • Ro60-0175 Antagonists: Agomelatine • Asenapine • EGIS-7625 • Ketanserin • Lisuride • LY-272,015 • 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 • Myristicin; Piperazines: Aripiprazole • mCPP • TFMPP; Tryptamines: 5-CT • 5-MeO-α-ET • 5-MeO-α-MT • 5-MeO-DET • 5-MeO-DiPT • 5-MeO-DMT • 5-MeO-DPT • 5-MT • α-ET • α-Methyl-5-HT • α-MT • Bufotenin • DET • DiPT • DMT • DPT • Psilocin • Psilocybin; Others: A-372,159 • AL-38022A • CP-809,101 • Lorcaserin • MK-212 • PNU-22394 • Ro60-0175 • Vabicaserin • WAY-629 • WAY-161,503 • YM-348 Antagonists: Atypical Antipsychotics: Clozapine • Iloperidone • Melperone • Olanzapine • Paliperidone • Pimozide • Quetiapine • Risperidone • Sertindole • Ziprasidone • Zotepine; Typical Antipsychotics: Loxapine • Pipamperone; Antidepressants: Agomelatine • Amitriptyline • Amoxapine • Etoperidone • Fluoxetine • Mianserin • Mirtazapine • Nefazodone • Trazodone; Others: Cinanserin • Deramciclane • Dimebolin • Dotarizine • Eltoprazine • FR-260,010 • Ketanserin • Pizotifen • Ritanserin • RS-102,221 • SB-200,646 • SB-206,553 • SB-221,284 • SB-228,357 • SB-242,084 • SB-243,213 • SDZ SER-082 • Xylamidine 5-HT3 Agonists: Piperazines: BZP • Quipazine; Tryptamines: 2-Methyl-5-HT • 5-CT; Others: Chlorophenylbiguanide • RS-56812 • SR-57,227 • SR-57,227-A • YM-31636 Antagonists: Antiemetics: Alosetron • Azasetron • Batanopride • Bemesetron • Cilansetron • Dolasetron • Granisetron • Lerisetron • Ondansetron • Palonosetron • Ramosetron • Renzapride • Tropisetron • Zacopride • Zatosetron; Atypical Antipsychotics: Clozapine • Olanzapine • Quetiapine; Tetracyclic Antidepressants: Amoxapine • Mianserin • Mirtazapine; Others: ICS-205,930 • Lu AA21004 • MDL-72,222 • Memantine • Ricasetron 5-HT4 Agonists: Gastroprokinetic Agents: Cisapride • Metoclopramide • Mosapride • Prucalopride • Renzapride • Tegaserod • Zacopride; Others: 5-MT • BIMU-8 • CJ-033,466 • PRX-03140 • RS-67333 • RS-67506 • TD-5108 Antagonists: GR-113,808 • GR-125,487 • L-Lysine • Piboserod • RS-39604 • RS-67532 • SB-203,186 5-HT5 5-HT5A Agonists: Lysergamides: Ergotamine • LSD; Tryptamines: 5-CT; Others: Valerenic Acid Antagonists: Asenapine • Dimebolin • Methiothepin • Ritanserin • SB-699,551 5-HT5B* Agonists: Lysergamides: Ergotamine • LSD Antagonists: Methiothepin * Note that the 5-HT5B receptor is not functional in humans. 5-HT6 Agonists: Lysergamides: Lisuride • LSD • Metergoline; Tryptamines: 5-CT • 5-MT • E-6801 • E-6837 • EMD-386,088 • EMDT • LY-586,713 • WAY-181,187 • WAY-208,466 Antagonists: Antidepressants: Amitriptyline • Amoxapine • Clomipramine • Doxepin • Mianserin • Nortriptyline; Atypical Antipsychotics: Aripiprazole • Asenapine • Clozapine • Fluperlapine • Iloperidone • Olanzapine • Tiospirone; Typical Antipsychotics: Chlorpromazine • Loxapine; Others: BGC20-760 • BVT-5182 • BVT-74316 • Dimebolin • EGIS-12233 • GW-742,457 • Ketanserin • Methiothepin • MS-245 • PRX-07034 • Ritanserin • Ro 04-6790 • Ro 63-0563 • SB-258,585 • SB-271,046 • SB-357,134 • SB-399,885 5-HT7 Agonists: Lysergamides: LSD; Tryptamines: 5-CT • 5-MT; Others: 8-OH-DPAT • AS-19 • Bifeprunox • LP-12 • LP-44 • Sarizotan Antagonists: Antidepressants: Amitriptyline • Amoxapine • Clomipramine • Imipramine • Maprotiline • Mianserin; Atypical Antipsychotics: Amisulpride • Aripiprazole • Clozapine • Olanzapine • Risperidone • Sertindole • Tiospirone • Ziprasidone • Zotepine; Typical Antipsychotics: Chlorpromazine • Loxapine; Others: EGIS-12233 • LY-215,840 • Mesulergine • Metergoline • Methiothepin • Pimozide • Ritanserin • SB-258,719 • SB-258,741 • SB-269,970 • SB-656,104 • SB-656,104-A • SB-691,673 • SLV-313 • SLV-314 • Spiperone • SSR-181,507 Reuptake Inhibitors Plasmalemmal SERT Inhibitors Selective Serotonin Reuptake Inhibitors (SSRIs): Alaproclate • Citalopram • Dapoxetine • Escitalopram • Femoxetine • Fluoxetine • Fluvoxamine • Indalpine • Litoxetine • Lubazodone • Paroxetine • Sertraline • Vilazodone • Zimelidine; Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs): Bicifadine • Desvenlafaxine • Duloxetine • Milnacipran • Venlafaxine; Serotonin-Norepinephrine-Dopamine Reuptake Inhibitors (SNDRIs): Brasofensine • Diclofensine • DOV 102,677 • DOV 21,947 • DOV 216,303 • NS2359 • SEP-225289 • SEP-227162 • Tesofensine; Tricyclic Antidepressants (TCAs): Amitriptyline • Butriptyline • Cianopramine • Clomipramine • Desipramine • Dosulepin • Doxepin • Imipramine • Lofepramine • Nortriptyline • Protriptyline • Trimipramine; Tetracyclic Antidepressants (TeCAs): Amoxapine; Piperazines: Nefazodone • Trazodone; Tropanes: Cocaine; Antihistamines: Brompheniramine • Chlorpheniramine • Diphenhydramine • Mepyramine/Pyrilamine • Pheniramine • Tripelennamine; Opioids: Meperidine/Pethidine • Methadone • Propoxyphene • Tramadol; Others: Cyclobenzaprine • Dextromethorphan • Mesembrine • SB-649915 • Sibutramine • Ziprasidone TRPC6 Activators Adhyperforin • Hyperforin Vesicular VMAT Inhibitors Ibogaine • Reserpine • Tetrabenazine Releasing Agents Aminoindanes: ETAI • MDAI • MDMAI • MMAI • TAI; Aminopropanes: Indanylaminopropane • Naphthylaminopropane; Benzofurans: 5-APDB; Oxazolines: 4-Methylaminorex • Aminorex; Phenethylamines: 2-Methyl-MDA • 3-Methoxy-4-methylamphetamine • 4-Bromomethcathinone • 4-Fluoroamphetamine • 4-Fluoromethamphetamine • 4-Methylamphetamine • 4-Methylmethamphetamine • 4-Methylthioamphetamine • 5-Methyl-MDA • BDB • BOH • Butylone • Chlorphentermine • Diethylcathinone • Dimethylcathinone • EBDB • Ethylone • Fenfluramine • Flephedrone • MBDB • MDA • MDEA • MDMA (Ecstasy) • MDOH • MDPEA • Mephedrone • Methylone • MMDA • MMDMA • Norfenfluramine • para-Bromoamphetamine • para-Chloroamphetamine • para-Chloromethamphetamine • para-Iodoamphetamine • para-Methoxyamphetamine • para-Methoxyethylamphetamine • para-Methoxymethamphetamine; Quinolines: PK 7059 • Viqualine; Tryptamines: α-ET • α-MT Enzyme Inhibitors Anabolism TPH Inhibitors AGN-2979 • Fenclonine AAAD Inhibitors Benserazide • Carbidopa Catabolism MAO Inhibitors Nonselective: Iproclozide • Iproniazid • Isocarboxazid • Nialamide • Phenelzine • Pheniprazine • Tranylcypromine; MAO-A Selective: Befloxatone • Brofaromine • Cimoxatone • Clorgiline • Harmala Alkaloids • Minaprine • Moclobemide • Pirlindole • Toloxatone • Tyrima Others Precursors L-Tryptophan • 5-HTP Cofactors Iron • Tetrahydrobiopterin • Vitamin B3 (Niacin/Nicotinamide/NADPH) • Vitamin B6 (Pyridoxine/Pyridoxamine/Pyridoxal 5-Phosphate) • Vitamin B9 (Folic Acid/Tetrahydrofolic Acid) • Vitamin C (Ascorbic Acid) • Zinc Others Activity Enhancers: BPAP • PPAP; Reuptake Enhancers: Tianeptine

v • d • e Dopaminergics Receptor Ligands Agonists Benzazepines: Fenoldopam • SKF 38393 • SKF 82958; Ergot-derivatives: Bromocriptine • Cabergoline • Dihydroergocryptine • Lisuride • LSD • Pergolide; Dihydrexidine-derivatives: A-86929 • Dihydrexidine • Dinapsoline • Dinoxyline • Doxathrine; Morphine-derivatives: Apomorphine • Propylnorapomorphine; Piperazines: Aripiprazole • Piribedil • WAY-100,635; Others: A-412,997 • Aplindore • Memantine • Pramipexole • Pukateine • Quinpirole • RDS-127 • Ropinirole • Rotigotine Antagonists Typical Antipsychotics: Acepromazine • Azaperone • Benperidol • Bromperidol • Clopenthixol • Chlorpromazine • Chlorprothixene • Droperidol • Flupentixol • Fluphenazine • Fluspirilene • Haloperidol • Loxapine • Mesoridazine • Methotrimeprazine • Molindone • Penfluridol • Perazine • Periciazine • Perphenazine • Pimozide • Prochlorperazine • Promazine • Sulforidazine • Thioridazine • Thiothixene • Trifluoperazine • Triflupromazine • Trifluperidol • Zuclopenthixol; Atypical Antipsychotics: Amisulpride • Asenapine • Clozapine • Iloperidone • Melperone • Olanzapine • Paliperidone • Perospirone • Quetiapine • Risperidone • Sertindole • Sulpiride • Ziprasidone • Zotepine; Antiemetics: Alizapride • Bromopride • Clebopride • Domperidone • Metoclopramide • Thiethylperazine; Others: Amoxapine • Blonanserin • Buspirone • Butaclamol • Eticlopride • Fananserin • Mosapramine • Nafadotride • Nemonapride • Nuciferine • Raclopride • Remoxipride • SB-277,011-A • SCH 23390 • Spiperone • Spiroxatrine • Stepholidine • Tetrahydropalmatine • Tiapride • UH-232 • Yohimbine Reuptake Inhibitors Plasmalemmal DAT Inhibitors Piperazines: DBL-583 • GBR-12935 • Nefazodone • Vanoxerine; Piperidines: BTCP • Desoxypipradrol • Dextromethylphenidate • Ethylphenidate • HDMP-28 • Methylphenidate • Phencyclidine • Pipradrol; Pyrovalerones: MDPV • Pyrovalerone; Tropanes: β-CPPIT • Altropane • Brasofensine • CFT • Cocaine • Dichloropane • Difluoropine • FE-β-CPPIT • FP-β-CPPIT • Ioflupane • Lometopane • RTI-121 • RTI-126 • RTI-150 • RTI-336 • Tenocyclidine • Tesofensine • Troparil • Tropoxane • WF-11 • WF-23 • WF-31 • WF-33; Others: Amfonelic Acid • Amineptine • Benztropine • Bromantane • BTQ • BTS 74,398 • Bupropion • Cypenamine • Diclofensine • Dimethocaine • Diphenylprolinol • Dizocilpine • DOV 102,677 • DOV 21,947 • DOV 216,303 • Ethcathinone • Fencamfamine • GYKI-52895 • Indatraline • Ketamine • Lefetamine • LR-5182 • Manifaxine • Mazindol • Medifoxamine • Mesocarb • Nisoxetine • Nomifensine • NS2359 • O-2172 • Prolintane • Radafaxine • SEP-225289 • SEP-227162 • Sibutramine • Tametraline • Tripelennamine TRPC6 Activators Adhyperforin • Hyperforin Vesicular VMAT Inhibitors Ibogaine • Reserpine • Tetrabenazine Releasing Agents Alkylamines: Cyclopentamine • Propylhexedrine; Aminopropanes: Indanylaminopropane • Naphthylaminopropane; Oxazolines: 4-Methylaminorex • Aminorex • Pemoline; Phenethylamines: 4-Fluoroamphetamine • 4-Fluoromethamphetamine • Amphetamine • Amphetaminil • Amfepentorex • Benzphetamine • Butylone • Cathine • Cathinone • Clobenzorex • Dextroamphetamine • Diethylcathinone • Dimethylamphetamine • Dimethylcathinone • Ethylamphetamine • Ethylone • Fenethylline • Fenproporex • Flephedrone • Furfenorex • Lisdexamfetamine • MBDB • MDA • MDEA • MDMA • Mefenorex • Mephedrone • Methamphetamine • Methcathinone • Methylone • Phendimetrazine • Phenethylamine • Phenmetrazine • PMA • PMEA • PMMA • Propylamphetamine • Tyramine • Xylopropamine; Piperazines: BZP • MBZP • MeOPP; Others: 4-Benzylpiperidine • Zylofuramine Enzyme Inhibitors Anabolism PAH Inhibitors 3,4-Dihydroxystyrene TH Inhibitors 3-Iodotyrosine • Aquayamycin • Bulbocapnine • Metirosine • Oudenone AAAD Inhibitors Benserazide • Carbidopa Catabolism MAO Inhibitors Nonselective: Iproclozide • Iproniazid • Isocarboxazid • Nialamide • Phenelzine • Pheniprazine • Tranylcypromine; MAO-A Selective: Befloxatone • Brofaromine • Cimoxatone • Clorgiline • Harmala Alkaloids • Minaprine • Moclobemide • Pirlindole • Toloxatone • Tyrima; MAO-B Selective: Lazabemide • Pargyline • Rasagiline • Selegiline COMT Inhibitors Entacapone • Tolcapone DBH Inhibitors Disulfiram • Nepicastat • Tropolone Others Precursors L-Phenylalanine • L-Tyrosine • L-DOPA Cofactors Iron • Tetrahydrobiopterin • Vitamin B3 (Niacin/Nicotinamide/NADPH) • Vitamin B6 (Pyridoxine/Pyridoxamine/Pyridoxal 5-Phosphate) • Vitamin B9 (Folic Acid/Tetrahydrofolic Acid) • Vitamin C (Ascorbic Acid) • Zinc Others Activity Enhancers: BPAP • PPAP; Others: Amantadine • Memantine • Rimantadine

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