Pharmaceutical compound
2C-I , also known as 2,5-dimethoxy-4-iodophenethylamine , is a phenethylamine of the 2C family with psychedelic effects.[ 1] synthesized by Alexander Shulgin , and is described in Shulgin's book PiHKAL
The substance is consumed as a recreational drug , and is circulated in the drug market in a powder form. 2C-I is sometimes confused with other related chemical substances such as 25I-NBOMe (2C-I-NBOMe) , nicknamed "Smiles" and "N-bomb" in the media.[ 2] [ 3] [ 4]
Use
In the early 2000s, 2C-I was sold in Dutch smart shops as a recreational drug after the drug 2C-B was banned.[ 5]
According to the US Drug Enforcement Administration , 2C-I is taken orally or snorted in a powder form.[ 6]
Interactions
2C-I is metabolized by the monoamine oxidase (MAO) enzymes MAO-A and MAO-B .[ 7] [ 8] Monoamine oxidase inhibitors (MAOIs) such as phenelzine , tranylcypromine , moclobemide , and selegiline may potentiate the effects of 2C-I.[ 7] [ 8] [ 9] overdose and serious toxicity .[ 9] [ 7]
Pharmacology
Pharmacodynamics
2C-I activities
Target Affinity (Ki , nM)
5-HT1A 107–970 (Ki )EC50 Tooltip half-maximal effective concentration )Emax Tooltip maximal efficacy )
5-HT1B 56
5-HT1D 40
5-HT1E 131
5-HT1F ND
5-HT2A 3.5–9.3 (Ki )EC50 )Emax )
5-HT2B 9.3 (Ki )EC50 )Emax )
5-HT2C 9.3–40 (Ki )EC50 )Emax )
5-HT3 >10,000
5-HT4 ND
5-HT5A >10,000
5-HT6 ND
5-HT7 1,316
α1A 5,100–>10,000
α1B >10,000
α1D >10,000
α2A 70–305
α2B 608
α2C 315
β1 4,512
β2 >10,000
β3 ND
D1 13,000
D2 1,013–2,700
D3 989–5,000
D4 2,788
D5 >10,000
H1 6,100
H2 >10,000
H3 >10,000
M1 >10,000
M2 1,429
M3 950
M4 1,129
M5 2,151
I1 ND
σ1 >10,000
σ2 5,470
MOR 2,522
DOR ND
KOR >10,000
TAAR1 Tooltip Trace amine-associated receptor 1 3,300 (Ki ) (mouse)i ) (rat)EC50 ) (mouse)EC50 ) (rat)EC50 ) (human)Emax ) (mouse)Emax ) (rat)
SERT Tooltip Serotonin transporter 950–4,900 (Ki )IC50 Tooltip half-maximal inhibitory concentration )IA (EC50 )
NET Tooltip Norepinephrine transporter 15,000 (Ki )IC50 )IA (EC50 )
DAT Tooltip Dopamine transporter >30,000 (Ki )IC50 )IA (EC50 )
MAO-A Tooltip Monoamine oxidase A 125,000 (IC50 )
MAO-B Tooltip Monoamine oxidase B 55,000 (IC50 )
Notes: The smaller the value, the more avidly the drug binds to the site. All proteins are human unless otherwise specified. Refs: [ 10] [ 11] [ 12] [ 13] [ 14] [ 15] [ 16] [ 17] [ 18] [ 19] [ 20] [ 21]
2C-I acts as a serotonin receptor agonist . It produces psychedelic effects via serotonin 5-HT2A receptor activation.
It is inactive as a monoamine releasing agent and shows negligible activity as a monoamine reuptake inhibitor .[ 12] [ 11]
2C-I is a highly potent anti-inflammatory drug similarly to various other serotonergic psychedelics .[ 19] potency of any other assessed drug in a large series in one study.[ 19] (R )-DOI in terms of anti-inflammatory activity.[ 19]
Chemistry
Analogues and derivatives
Society and culture
Legal status
2C-I in powder form.
Australia
2C-I is a schedule 9 prohibited substance in Australia under the Poisons Standard (October 2015).[ 22] Poisons Act 1964 as "Substances which may be abused or misused, the manufacture, possession, sale or use of which should be prohibited by law except when required for medical or scientific research, or for analytical, teaching or training purposes with approval of the CEO".[ 23]
Canada
As of October 31, 2016, 2C-I is a controlled substance (Schedule III) in Canada.[ 24]
European Union
In December 2003, the European Council issued a binding order compelling all European Union member states to ban 2C-I within three months.[ 25]
Finland
Illegal: scheduled in the "government decree on substances, preparations and plants considered to be narcotic drugs".[ 26]
Sweden
Sveriges riksdag "substances, plant materials and fungi which normally do not have medical use" ) as a narcotic on March 16, 2004, published by the Medical Products Agency [ 27]
United Kingdom
In the United Kingdom, 2C-I is controlled as a Class A substance.[ 25]
United States
As of July 9, 2012, in the United States 2C-I is a Schedule I substance under the Synthetic Drug Abuse Prevention Act of 2012 , making possession, distribution and manufacture illegal.[ 25] [ 28]
See also
References
^ Bosak A, LoVecchio F, Levine M (June 2013). "Recurrent seizures and serotonin syndrome following "2C-I" ingestion" . Journal of Medical Toxicology . 9 (2): 196– 198. doi :10.1007/s13181-013-0287-x . PMC 3657032 PMID 23378129 . ^ "25I-NBOMe (2C-I-NBOMe): Fatalities / Deaths" .^ Weiss, Piper (September 20, 2012). 2C-I or 'Smiles': The New Killer Drug Every Parent Should Know About. Yahoo! News
^ Mackin T (October 9, 2012). "Dangerous synthetic drug making its way across the country" . Archived from the original on October 31, 2012. WISH-TV ^ de Boer D, Gijzels MJ, Bosman IJ, Maes RA (May–June 1999). "More data about the new psychoactive drug 2C-B" . Journal of Analytical Toxicology . 23 (3): 227– 228. doi :10.1093/jat/23.3.227 PMID 10369336 . ^ Reuters (March 20, 2011). Synthetic drug, subject of proposed bans, kill teen.
^ a b c Dean BV, Stellpflug SJ, Burnett AM, Engebretsen KM (June 2013). "2C or not 2C: phenethylamine designer drug review" . J Med Toxicol . 9 (2): 172– 178. doi :10.1007/s13181-013-0295-x . PMC 3657019 PMID 23494844 . ^ a b Theobald DS, Maurer HH (January 2007). "Identification of monoamine oxidase and cytochrome P450 isoenzymes involved in the deamination of phenethylamine-derived designer drugs (2C-series)". Biochem Pharmacol . 73 (2): 287– 297. doi :10.1016/j.bcp.2006.09.022 . PMID 17067556 . ^ a b Halman A, Kong G, Sarris J, Perkins D (January 2024). "Drug-drug interactions involving classic psychedelics: A systematic review" . J Psychopharmacol . 38 (1): 3– 18. doi :10.1177/02698811231211219 . PMC 10851641 PMID 37982394 . ^ "Kᵢ Database" . PDSP . 16 March 2025. Retrieved 16 March 2025 .^ a b Rickli A, Luethi D, Reinisch J, Buchy D, Hoener MC, Liechti ME (December 2015). "Receptor interaction profiles of novel N-2-methoxybenzyl (NBOMe) derivatives of 2,5-dimethoxy-substituted phenethylamines (2C drugs)" (PDF) . Neuropharmacology . 99 : 546– 553. doi :10.1016/j.neuropharm.2015.08.034 . PMID 26318099 . ^ a b Eshleman AJ, Forster MJ, Wolfrum KM, Johnson RA, Janowsky A, Gatch MB (March 2014). "Behavioral and neurochemical pharmacology of six psychoactive substituted phenethylamines: mouse locomotion, rat drug discrimination and in vitro receptor and transporter binding and function" . Psychopharmacology (Berl) . 231 (5): 875– 888. doi :10.1007/s00213-013-3303-6 . PMC 3945162 PMID 24142203 . ^ Ettrup A, Hansen M, Santini MA, Paine J, Gillings N, Palner M, et al. (April 2011). "Radiosynthesis and in vivo evaluation of a series of substituted 11C-phenethylamines as 5-HT (2A) agonist PET tracers". Eur J Nucl Med Mol Imaging . 38 (4): 681– 693. doi :10.1007/s00259-010-1686-8 . PMID 21174090 . ^ Rudin D, Luethi D, Hoener MC, Liechti ME (2022). "Structure-activity Relation of Halogenated 2,5-Dimethoxyamphetamines Compared to their α‑Desmethyl (2C) Analogues" . The FASEB Journal . 36 (S1) fasebj.2022.36.S1.R2121. doi :10.1096/fasebj.2022.36.S1.R2121 ISSN 0892-6638 . ^ Pottie E, Cannaert A, Stove CP (October 2020). "In vitro structure-activity relationship determination of 30 psychedelic new psychoactive substances by means of β-arrestin 2 recruitment to the serotonin 2A receptor". Arch Toxicol . 94 (10): 3449– 3460. Bibcode :2020ArTox..94.3449P . doi :10.1007/s00204-020-02836-w . hdl :1854/LU-8687071 PMID 32627074 . ^ Wallach J, Cao AB, Calkins MM, Heim AJ, Lanham JK, Bonniwell EM, et al. (December 2023). "Identification of 5-HT2A receptor signaling pathways associated with psychedelic potential" . Nat Commun . 14 (1) 8221. doi :10.1038/s41467-023-44016-1 . PMC 10724237 PMID 38102107 . ^ Acuña-Castillo C, Villalobos C, Moya PR, Sáez P, Cassels BK, Huidobro-Toro JP (June 2002). "Differences in potency and efficacy of a series of phenylisopropylamine/phenylethylamine pairs at 5-HT(2A) and 5-HT(2C) receptors" . Br J Pharmacol . 136 (4): 510– 519. doi :10.1038/sj.bjp.0704747 . PMC 1573376 PMID 12055129 . ^ Moya PR, Berg KA, Gutiérrez-Hernandez MA, Sáez-Briones P, Reyes-Parada M, Cassels BK, et al. (June 2007). "Functional selectivity of hallucinogenic phenethylamine and phenylisopropylamine derivatives at human 5-hydroxytryptamine (5-HT)2A and 5-HT2C receptors" (PDF) . J Pharmacol Exp Ther . 321 (3): 1054– 1061. doi :10.1124/jpet.106.117507 . PMID 17337633 . ^ a b c d Flanagan TW, Billac GB, Landry AN, Sebastian MN, Cormier SA, Nichols CD (April 2021). "Structure-Activity Relationship Analysis of Psychedelics in a Rat Model of Asthma Reveals the Anti-Inflammatory Pharmacophore" . ACS Pharmacol Transl Sci . 4 (2): 488– 502. doi :10.1021/acsptsci.0c00063 . PMC 8033619 PMID 33860179 . ^ Wagmann L, Brandt SD, Stratford A, Maurer HH, Meyer MR (February 2019). "Interactions of phenethylamine-derived psychoactive substances of the 2C-series with human monoamine oxidases". Drug Test Anal . 11 (2): 318– 324. doi :10.1002/dta.2494 . PMID 30188017 . ^ Simmler LD, Buchy D, Chaboz S, Hoener MC, Liechti ME (April 2016). "In Vitro Characterization of Psychoactive Substances at Rat, Mouse, and Human Trace Amine-Associated Receptor 1" (PDF) . J Pharmacol Exp Ther . 357 (1): 134– 144. doi :10.1124/jpet.115.229765 . PMID 26791601 . Archived from the original (PDF) on 9 May 2025. ^ Poisons Standard October 2015 ^ "Poisons Act 1964" (PDF) . Archived from the original (PDF) on 2015-12-22. Retrieved 2015-12-13 .^ Regulations Amending the Food and Drug Regulations (Part J — 2C-phenethylamines) ^ a b c "Erowid 2C-I Vault : Legal Status" .^ "Valtioneuvoston asetus huumausaineina pidettävistä aineista, valmisteista ja kasveista | 543/2008 | Lainsäädäntö | Finlex" .^ "Läkemedelsverkets författningssamling" (PDF) (in Swedish).^ "H.R. 1254 (112th): Synthetic Drug Control Act of 2011" . GovTrack . Retrieved 30 September 2015 .
External links
No ring subs. 4-Hydroxytryptamines 5-Hydroxytryptamines 5-Methoxytryptamines Other ring subs.
2,N ,N -TMT 4,N ,N -TMT 5-Bromo-DMT 5-Chloro-DMT 5-Fluoro-DMT 5-N ,N -TMT 7,N ,N -TMT 5-MeO-2,N ,N -TMT 5-MeO-4,N ,N -TMT 6-Fluoro-DMT Bretisilocin (GM-2505; 5-fluoro-MET) α-Alkyltryptamines
5-Methoxy-α-alkyltryptamines: 5-MeO-AET α,N ,N -TMT (α-Me-DMT; Alpha-N) 5-MeO-AMT (α,O -DMS; Alpha-O) α,N ,O -TMS (5-MeO-α,N -DMT) α,N ,N ,O -TeMS (5-MeO-α,N ,N -TMT) Others
Ergolines /lysergamides (e.g., LSD )β-Carbolines and Harmala alkaloidsharmine , harmaline , 6-methoxyharmalan )Iboga alkaloids18-MAC , 18-MC , coronaridine , ibogaine , ibogamine , ME-18-MC , noribogaine , tabernanthine , voacangine )Ibogalogs (e.g., ibogainalog )O -MethylnordehydrobufoteninePartial ergolines (e.g., NDTDI , RU-28306 , CT-5252 )Piperidinylethylindoles (e.g., pip-T )Pyrrolidinylethylindoles (e.g., pyr-T , 5-MeO-pyr-T )Pyrrolidinylmethylindoles (e.g., MPMI , 4-HO-MPMI (lucigenol) , 5-MeO-MPMI )
Benzofurans (e.g., 5-MeO-DiBF , dimemebfe (5-MeO-BFE) , mebfap )Benzothiophenes (e.g., 3-APBT )Indazolethylamines (e.g., AL-38022A , O -methyl-AL-34662Indenylethylamines (e.g., C-DMT )Isotryptamines (e.g., 6-MeO-isoDMT , Ro60-0175 )MYCO-005 Quinolinylethylamines (e.g., mefloquine )
Others: 2C-G-x (e.g., 2C-G-3 , 2C-G-5 )β-Keto-2C-B (βk-2C-B) β-Keto-2C-I (βk-2C-I) β-Methyl-2C-B (BMB) BOB , BOD , BOH-2C-B )HOT-2 , HOT-7 , HOT-17 )N -Ethyl-2C-B2CD-2-ETO , 2CD-5-ETO , 2CE-5-ETO , 2CE-5iPrO , 2CT2-5-ETO , ASR-2001 (2CB-5PrO) ) Others
2-TOET 2-TOM 25B-NAcPip 4-HA 5-TOET 5-TOM Benzofurans (e.g., 5-APB , 5-APDB , 6-APB , 6-APDB , F , F-2 , F-22 )Benzothiophenes (e.g., 5-APBT , 6-APBT )CT-5172 DMAs (e.g., 2,4-DMA , 3,4-DMA )Fenfluramine MMA (3-MeO-4-MA) Norfenfluramine 25D-NM-NDEAOP , DOB-NDEPA , DOI-NDEPA , DOM-NDEPA , DOTFM-NDEPA , M-NDEPA , TMA-2-NDEPA )PMA (4-MA) TMA-3 , TMA-4 , TMA-5 )TOMSO ZDCM-04
1-Aminomethylindanes (e.g., 2CB-Ind , jimscaline )2-Aminoindanes (e.g., DOM-AI )3-Phenylpiperidines (e.g., LPH-5 , LPH-48 )Benzazepines (e.g., lorcaserin )Benzocyclobutenes (e.g., 2CBCB-NBOMe , TCB-2 , tomscaline )Benzoxepins (e.g., BBOX , IBOX , TFMBOX )DMBMPP (juncosamine) Ergolines /lysergamides (e.g., LSD )Glaucine Partial ergolines (e.g., NDTDI , DEIMDHPCA , DEMPDHPCA , DEMTMPDHPCA , DEMNDHPCA )Phenylcyclopropylamines (e.g., DMCPA , TMT )Phenyloxazolamines (aminorexes ) (e.g., 2C-B-aminorex )Pyridopyrroloquinoxalines (e.g., IHCH-7113 )Z3517967757 ZC-B
Others
Arylpiperazines (e.g., 2C-B-PP , 2-NP , mCPP , MK-212 , ORG-12962 , pCPP , pFPP , quipazine , TFMPP )Dihydrobenzoxazines (e.g., efavirenz )Phenoxyethylamines (e.g., CT-4719 , ORG-37684 )Pyridopyrroloquinoxalines (e.g., IHCH-7113 )Quinazolinylethylamines (e.g., RH-34 ) Natural sources
Tryptamines: Acacia spp.Acacia acuminata Acacia confusa Ayahuasca and vinho de Jurema (e.g., Psychotria viridis (chacruna)Dipolopterys cabrerana (chaliponga, chacruna)Mimosa tenuiflora (Mimosa hostilis ; jurema)Brosimum Brosimum acutifolium (takini)Hallucinogenic snuffs (e.g., Anadenanthera peregrina (yopo, jopo, cohoba, parica, ebene)Anadenanthera colubrina (vilca, cebil)Incilius alvarius (Bufo alvarius ; Colorado River toad, Sonoran Desert toad; bufo)Psilocybin-containing mushrooms (magic mushrooms, shrooms) (e.g., Psilocybe cubensis Psilocybe mexicana (teonanacatl)Lysergamides: Achnatherum robustum (sleepy grass)Epichloë spp.Ergot (Claviceps ) (e.g., Claviceps purpurea Claviceps paspali Morning glory (Convolvulaceae) seeds (e.g., Ipomoea tricolor (tlitliltzin, badoh negro; Ipomoea violacea )Ipomoea corymbosa (coaxihuitl, ololiúqui; Rivea Corymbosa , Turbina Corymbosa )Argyreia nervosa (Hawaiian baby woodrose; HBWR)Periglandula spp.Periglandula ipomoeae Periglandula clandestina
5-HT1
5-HT1A
Agonists: 8-OH-DPAT Adatanserin Amphetamine Antidepressants (e.g., etoperidone , hydroxynefazodone , nefazodone , trazodone , triazoledione , vilazodone , vortioxetine )Atypical antipsychotics (e.g., aripiprazole , asenapine , brexpiprazole , cariprazine , clozapine , lurasidone , quetiapine , ziprasidone )Azapirones (e.g., buspirone , eptapirone , gepirone , perospirone , tandospirone )Bay R 1531 Befiradol BMY-14802 Cannabidiol Dimemebfe Dopamine Ebalzotan Eltoprazine Enciprazine Ergolines (e.g., bromocriptine , cabergoline , dihydroergotamine , ergotamine , lisuride , LSD , methylergometrine (methylergonovine) , methysergide , pergolide )F-11461 F-12826 F-13714 F-14679 F-15063 F-15599 Flesinoxan Flibanserin Flumexadol Hypidone Lesopitron LY-293284 LY-301317 mCPP MKC-242 Naluzotan NBUMP Osemozotan Oxaflozane Pardoprunox Piclozotan Rauwolscine Repinotan Roxindole RU-24969 S-14506 S-14671 S-15535 Sarizotan Serotonin (5-HT) SSR-181507 Sunepitron Tryptamines (e.g., 5-CT , 5-MeO-DMT , 5-MT , bufotenin , DMT , indorenate , N-Me-5-HT , psilocin , psilocybin )TGBA01AD U-92016-A Urapidil Vilazodone Xaliproden Yohimbine
Positive allosteric modulators: Oleamide
Antagonists: Atypical antipsychotics (e.g., iloperidone , risperidone , sertindole )AV965 Beta blockers (e.g., alprenolol , carteolol , cyanopindolol , iodocyanopindolol , isamoltane , oxprenolol , penbutolol , pindobind , pindolol , propranolol , tertatolol )BMY-7378 CSP-2503 Dotarizine Ergolines (e.g., metergoline )FCE-24379 Flopropione GR-46611 Isamoltane Lecozotan Mefway Metitepine (methiothepin) MIN-117 (WF-516) MPPF NAN-190 Robalzotan S-15535 SB-649915 SDZ 216-525 Spiperone Spiramide Spiroxatrine UH-301 WAY-100135 WAY-100635 Xylamidine
5-HT1B
Agonists: Anpirtoline CGS-12066A CP-93129 CP-94253 CP-122288 CP-135807 Eltoprazine Ergolines (e.g., bromocriptine , dihydroergotamine , ergotamine , methylergometrine (methylergonovine) , methysergide , pergolide )mCPP RU-24969 Serotonin (5-HT) Triptans (e.g., avitriptan , donitriptan , eletriptan , sumatriptan , zolmitriptan )TFMPP Tryptamines (e.g., 5-BT , 5-CT , 5-MT , DMT )Vortioxetine
5-HT1D
Agonists: CP-122288 CP-135807 CP-286601 Ergolines (e.g., bromocriptine , cabergoline , dihydroergotamine , ergotamine , LSD , methysergide )GR-46611 L-694247 L-772405 mCPP PNU-109291 PNU-142633 Serotonin (5-HT) TGBA01AD Triptans (e.g., almotriptan , avitriptan , donitriptan , eletriptan , frovatriptan , naratriptan , rizatriptan , sumatriptan , zolmitriptan )Tryptamines (e.g., 5-BT , 5-CT , 5-Et-DMT , 5-MT , 5-(nonyloxy)tryptamine , DMT )
5-HT1E
5-HT1F
5-HT2
5-HT2A
Agonists: 25H/NB series (e.g., 25I-NBF , 25I-NBMD , 25I-NBOH , 25I-NBOMe , 25B-NBOMe , 25C-NBOMe , 25TFM-NBOMe , 2CBCB-NBOMe , 25CN-NBOH , 2CBFly-NBOMe )2Cs (e.g., 2C-B , 2C-E , 2C-I , 2C-T-2 , 2C-T-7 , 2C-T-21 )2C-B-FLY 2CB-Ind 5-Methoxytryptamines (5-MeO-DET , 5-MeO-DiPT , 5-MeO-DMT , 5-MeO-DPT , 5-MT )α-Alkyltryptamines (e.g., 5-Cl-αMT , 5-Fl-αMT , 5-MeO-αET , 5-MeO-αMT , α-Me-5-HT , αET , αMT )AL-34662 AL-37350A Bromo-DragonFLY Dimemebfe DMBMPP DOx (e.g., DOB , DOC , DOI , DOM )Efavirenz Ergolines (e.g., 1P-LSD , ALD-52 , bromocriptine , cabergoline , ergine (LSA) , ergometrine (ergonovine) , ergotamine , lisuride , LA-SS-Az , LSB , LSD , LSD-Pip , LSH , LSP , methylergometrine (methylergonovine) , pergolide )Flumexadol IHCH-7113 Jimscaline Lorcaserin MDxx (e.g., MDA (tenamfetamine) , MDMA (midomafetamine) , MDOH , MMDA )O-4310 Oxaflozane PHA-57378 PNU-22394 PNU-181731 RH-34 SCHEMBL5334361 Phenethylamines (e.g., lophophine , mescaline )Piperazines (e.g., BZP , quipazine , TFMPP )Serotonin (5-HT) TCB-2 TFMFly Tryptamines (e.g., 5-BT , 5-CT , bufotenin , DET , DiPT , DMT , DPT , psilocin , psilocybin , tryptamine )
Antagonists: 5-I-R91150 5-MeO-NBpBrT AC-90179 Adatanserin Altanserin Antihistamines (e.g., cyproheptadine , hydroxyzine , ketotifen , perlapine )AMDA Atypical antipsychotics (e.g., amperozide , aripiprazole , asenapine , blonanserin , brexpiprazole , carpipramine , clocapramine , clorotepine , clozapine , fluperlapine , gevotroline , iloperidone , lurasidone , melperone , mosapramine , ocaperidone , olanzapine , paliperidone , quetiapine , risperidone , sertindole , zicronapine , ziprasidone , zotepine )Chlorprothixene Cinanserin CSP-2503 Deramciclane Dotarizine Eplivanserin Ergolines (e.g., amesergide , LY-53857 , LY-215840 , mesulergine , metergoline , methysergide , sergolexole )Fananserin Flibanserin Glemanserin Irindalone Ketanserin KML-010 Landipirdine LY-393558 mCPP Medifoxamine Metitepine (methiothepin) MIN-117 (WF-516) Naftidrofuryl Nantenine Nelotanserin Opiranserin (VVZ-149) Pelanserin Phenoxybenzamine Pimavanserin Pirenperone Pizotifen Pruvanserin Rauwolscine Ritanserin Roluperidone S-14671 Sarpogrelate Serotonin antagonists and reuptake inhibitors (e.g., etoperidone , hydroxynefazodone , lubazodone , mepiprazole , nefazodone , triazoledione , trazodone )SR-46349B TGBA01AD Teniloxazine Temanogrel Tetracyclic antidepressants (e.g., amoxapine , aptazapine , esmirtazapine , maprotiline , mianserin , mirtazapine )Tricyclic antidepressants (e.g., amitriptyline )Typical antipsychotics (e.g., chlorpromazine , fluphenazine , haloperidol , loxapine , perphenazine , pimozide , pipamperone , prochlorperazine , setoperone , spiperone , spiramide , thioridazine , thiothixene , trifluoperazine )Volinanserin Xylamidine Yohimbine
5-HT2B
Agonists: 4-Methylaminorex Aminorex Amphetamines (e.g., chlorphentermine , cloforex , dexfenfluramine , fenfluramine , levofenfluramine , norfenfluramine )BW-723C86 DOx (e.g., DOB , DOC , DOI , DOM )Ergolines (e.g., cabergoline , dihydroergocryptine , dihydroergotamine , ergotamine , methylergometrine (methylergonovine) , methysergide , pergolide )Lorcaserin MDxx (e.g., MDA (tenamfetamine) , MDMA (midomafetamine) , MDOH , MMDA )Piperazines (e.g., TFMPP )PNU-22394 Ro60-0175 Serotonin (5-HT) Tryptamines (e.g., 5-BT , 5-CT , 5-MT , α-Me-5-HT , bufotenin , DET , DiPT , DMT , DPT , psilocin , psilocybin , tryptamine )
Antagonists: Agomelatine Atypical antipsychotics (e.g., amisulpride , aripiprazole , asenapine , brexpiprazole , cariprazine , clozapine , N-desalkylquetiapine (norquetiapine) , N-desmethylclozapine (norclozapine) , olanzapine , pipamperone , quetiapine , risperidone , ziprasidone )Cyproheptadine EGIS-7625 Ergolines (e.g., amesergide , bromocriptine , lisuride , LY-53857 , LY-272015 , mesulergine )Ketanserin LY-393558 mCPP Metadoxine Metitepine (methiothepin) Pirenperone Pizotifen Propranolol PRX-08066 Rauwolscine Ritanserin RS-127445 Sarpogrelate SB-200646 SB-204741 SB-206553 SB-215505 SB-221284 SB-228357 SDZ SER-082 Tegaserod Tetracyclic antidepressants (e.g., amoxapine , mianserin , mirtazapine )Trazodone Typical antipsychotics (e.g., chlorpromazine )TIK-301 Yohimbine
5-HT2C
Agonists: 2Cs (e.g., 2C-B , 2C-E , 2C-I , 2C-T-2 , 2C-T-7 , 2C-T-21 )5-Methoxytryptamines (5-MeO-DET , 5-MeO-DiPT , 5-MeO-DMT , 5-MeO-DPT , 5-MT )α-Alkyltryptamines (e.g., 5-Cl-αMT , 5-Fl-αMT , 5-MeO-αET , 5-MeO-αMT , α-Me-5-HT , αET , αMT )A-372159 AL-38022A Alstonine CP-809101 Dimemebfe DOx (e.g., DOB , DOC , DOI , DOM )Ergolines (e.g., ALD-52 , cabergoline , dihydroergotamine , ergine (LSA) , ergotamine , lisuride , LA-SS-Az , LSB , LSD , LSD-Pip , LSH , LSP , pergolide )Flumexadol Lorcaserin MDxx (e.g., MDA (tenamfetamine) , MDMA (midomafetamine) , MDOH , MMDA )MK-212 ORG-12962 ORG-37684 Oxaflozane PHA-57378 Phenethylamines (e.g., lophophine , mescaline )Piperazines (e.g., aripiprazole , BZP , mCPP , quipazine , TFMPP )PNU-22394 PNU-181731 Ro60-0175 Ro60-0213 Serotonin (5-HT) Tryptamines (e.g., 5-BT , 5-CT , bufotenin , DET , DiPT , DMT , DPT , psilocin , psilocybin , tryptamine )Vabicaserin WAY-629 WAY-161503 YM-348
Antagonists: Adatanserin Agomelatine Atypical antipsychotics (e.g., asenapine , clorotepine , clozapine , fluperlapine , iloperidone , melperone , olanzapine , paliperidone , quetiapine , risperidone , sertindole , ziprasidone , zotepine )Captodiame CEPC Cinanserin Cyproheptadine Deramciclane Desmetramadol Dotarizine Eltoprazine Ergolines (e.g., amesergide , bromocriptine , LY-53857 , LY-215840 , mesulergine , metergoline , methysergide , sergolexole )Etoperidone Fluoxetine FR-260010 Irindalone Ketanserin Ketotifen Latrepirdine (dimebolin) Medifoxamine Metitepine (methiothepin) Nefazodone Pirenperone Pizotifen Propranolol Ritanserin RS-102221 S-14671 SB-200646 SB-206553 SB-221284 SB-228357 SB-242084 SB-243213 SDZ SER-082 Tedatioxetine Tetracyclic antidepressants (e.g., amoxapine , aptazapine , esmirtazapine , maprotiline , mianserin , mirtazapine )TIK-301 Tramadol Trazodone Tricyclic antidepressants (e.g., amitriptyline , nortriptyline )Typical antipsychotics (e.g., chlorpromazine , loxapine , pimozide , pipamperone , thioridazine )Xylamidine
5-HT3 –7
5-HT3
Agonists: Alcohols (e.g., butanol , ethanol (alcohol) , trichloroethanol )m-CPBG Phenylbiguanide Piperazines (e.g., BZP , mCPP , quipazine )RS-56812 Serotonin (5-HT) SR-57227 SR-57227A Tryptamines (e.g., 2-Me-5-HT , 5-CT , bufotenidine (5-HTQ) )Volatiles/gases (e.g., halothane , isoflurane , toluene , trichloroethane )YM-31636
Antagonists: Alosetron Anpirtoline Arazasetron AS-8112 Atypical antipsychotics (e.g., clozapine , olanzapine , quetiapine )Azasetron Batanopride Bemesetron (MDL-72222) Cilansetron CSP-2503 Dazopride Dolasetron Galanolactone Granisetron Lerisetron Memantine Ondansetron Palonosetron Ramosetron Renzapride Ricasetron Tedatioxetine Tetracyclic antidepressants (e.g., amoxapine , mianserin , mirtazapine )Thujone Tropanserin Tropisetron Typical antipsychotics (e.g., loxapine )Volatiles/gases (e.g., nitrous oxide , sevoflurane , xenon )Vortioxetine Zacopride Zatosetron
5-HT4
5-HT5A
5-HT6
Agonists: Ergolines (e.g., dihydroergocryptine , dihydroergotamine , ergotamine , lisuride , LSD , mesulergine , metergoline , methysergide )Hypidone Serotonin (5-HT) Tryptamines (e.g., 2-Me-5-HT , 5-BT , 5-CT , 5-MT , Bufotenin , E-6801 , E-6837 , EMD-386088 , EMDT , LY-586713 , N-Me-5-HT , ST-1936 , tryptamine )WAY-181187 WAY-208466
Antagonists: ABT-354 Atypical antipsychotics (e.g., aripiprazole , asenapine , clorotepine , clozapine , fluperlapine , iloperidone , olanzapine , tiospirone )AVN-101 AVN-211 AVN-322 AVN-397 BGC20-760 BVT-5182 BVT-74316 Cerlapirdine EGIS-12233 GW-742457 Idalopirdine Ketanserin Landipirdine Latrepirdine (dimebolin) Masupirdine Metitepine (methiothepin) MS-245 PRX-07034 Ritanserin Ro 04-6790 Ro 63-0563 SB-258585 SB-271046 SB-357134 SB-399885 SB-742457 Tetracyclic antidepressants (e.g., amoxapine , mianserin )Tricyclic antidepressants (e.g., amitriptyline , clomipramine , doxepin , nortriptyline )Typical antipsychotics (e.g., chlorpromazine , loxapine )
5-HT7
Antagonists: Atypical antipsychotics (e.g., amisulpride , aripiprazole , asenapine , brexpiprazole , clorotepine , clozapine , fluperlapine , olanzapine , risperidone , sertindole , tiospirone , ziprasidone , zotepine )Butaclamol DR-4485 EGIS-12233 Ergolines (e.g., 2-Br-LSD (BOL-148) , amesergide , bromocriptine , cabergoline , dihydroergotamine , ergotamine , LY-53857 , LY-215840 , mesulergine , metergoline , methysergide , sergolexole )JNJ-18038683 Ketanserin LY-215840 Metitepine (methiothepin) Ritanserin SB-258719 SB-258741 SB-269970 SB-656104 SB-656104A SB-691673 SLV-313 SLV-314 Spiperone SSR-181507 Tetracyclic antidepressants (e.g., amoxapine , maprotiline , mianserin , mirtazapine )Tricyclic antidepressants (e.g., amitriptyline , clomipramine , imipramine )Typical antipsychotics (e.g., acetophenazine , chlorpromazine , chlorprothixene , fluphenazine , loxapine , pimozide )Vortioxetine
Negative allosteric modulators: Oleamide
TAAR1 Tooltip Trace amine-associated receptor 1
TAAR5 Tooltip Trace amine-associated receptor 5
Notes: (1) TAAR1 activity of ligands varies significantly between species. Some agents that are TAAR1 ligands in some species are not in other species. This navbox includes all TAAR1 ligands regardless of species. (2) See the individual pages for references, as well as the
List of trace amines ,
TAAR , and
TAAR1 pages.
See also: Receptor/signaling modulators
Phenethylamines Amphetamines Phentermines Cathinones Phenylisobutylamines (and further-extended) Catecholamines (and close relatives) Cyclized
Phenylalkylpyrrolidines 2-Benzylpiperidines (phenidates ) Phenylmorpholines (phenmetrazines) Phenyloxazolamines (aminorexes) Isoquinolines andtetrahydroisoquinolines 2-Aminoindanes 2-Aminotetralins Others / unsorted
1-Aminomethylindanes (e.g., 2CB-Ind , AMMI , bromojimscaline , jimscaline )2-ADN 2-Benzhydrylpyrrolidine 2C-B-5-hemiFLY-α6 (BNAP) 2C-B-PYR 2CBecca 2CJP 2CLisaB 2CLisaH 3-Benzhydrylmorpholine 3-Phenylpiperidines (e.g., 3-phenylpiperidine , 3-PPP , OSU-6162 (PNU-96391) , LPH-5 , LPH-48 , Z3517967757 (Z7757) )6-AB AL-1095 Aminochromes (e.g., adrenochrome , adrenolutin )Benzazepines (e.g., fenoldopam , lorcaserin , SCHEMBL5334361 )Benzocyclobutenes (e.g., 2CBCB-NBOMe , bromotomscaline , S33005 , TCB-2 , tomscaline )Benzoxepins (e.g., BBOX , IBOX , TFMBOX )Butyltolylquinuclidine Camfetamine Cypenamine (trans -2-phenylcyclopentylamine) Diphenidine Diphenylprolinol DMBMPP Ergolines (e.g., LSD )Fencamfamin GYKI-52895 HDMP-29 Ivabradine Methoxphenidine Methylmorphenate Milnacipran MT-45 2-Naphthylamine Org 6582 Partial ergolines (e.g., NDTDI , RU-27849 , DEIMDHPCA , DEMPDHPCA , DEMPDHPCA-2C-D , RU-27251 )PF-592,379 Phenylcyclopropylamines (e.g., DMCPA , TMT , tranylcypromine )Phenylpiracetams (e.g., phenylpiracetam , MRZ-9547 , RGPU-95 )Pyridopyrroloquinoxalines (e.g., lumateperone , deulumateperone , IHCH-7079 , IHCH-7086 , IHCH-7113 , ITI-1549 )Tetrahydrobenzopyranylamines (e.g., CT-5126 )Tolazoline Tricyclics (e.g., AMDA , AMDH , benzoctamine , dizocilpine , SpAMDA )ZC-B
Related compounds
2-Furylethylamine 2-Pyrrolylethylamine 3-Pyrrolylethylamine 3-Pyrrolylpropylamine 2-Tetrahydrofurylethylamine 4-Benzylpiperidine 7-AB Alkylamines (e.g., 1,3-DMBA Tooltip 1,3-dimethylbutylamine , 1,4-DMAA Tooltip 1,4-dimethylamylamine , heptaminol , iproheptine , isometheptene , methylhexanamine/1,3-DMAA , octodrine , oenethyl , tuaminoheptane )Benzylamines (e.g., benzylamine , α-methylbenzylamine , MDM1EA , ALPHA , M-ALPHA , pargyline )Benzylpiperazines (e.g., benzylpiperazine , MDBZP , fipexide )Cyclohexylaminopropanes (e.g., propylhexedrine , norpropylhexedrine )Cyclopentylaminopropanes (e.g., isocyclamine , cyclopentamine )Phenoxyethylamines (e.g., 3,4,5-trimethoxyphenoxyethylamine , CT-4719 , ORG-37684 )Phenylalkenylamines (e.g., phenylbutenamine )Phenylalkynylamines (e.g., phenylbutynamine )Phenylpiperazines (e.g., 1-phenylpiperazine , mCPP Tooltip meta-chlorophenylpiperazine , TFMPP Tooltip trifluoromethylphenylpiperazine , oMPP Tooltip ortho-methylphenylpiperazine , pFPP Tooltip para-fluorophenylpiperazine , pMeOPP Tooltip para-methoxyphenylpiperazine )Phenylpropylamines (e.g., phenylpropylamine , homo-MDA , homo-MDMA )Thienylaminopropanes (thiopropamines) (e.g., thiopropamine , methiopropamine , thiothinone )
