25D-NBOMe
25D-NBOMe is a synthetic psychedelic of the substituted phenethylamine class1, derived from 2C-D through the addition of an N-benzyl methoxy group1. It was discovered in 2003 by Ralf Heim at the Free University of Berlin and emerged as a recreational substance around 2010 through online research chemical vendors. It acts as a potent partial agonist at the 5-HT2A receptor, producing primarily visual and stimulating effects with roughly sixteen-fold greater potency than its parent compound.
Contents
Dosage & Duration
Dosage
This substance must be administered sublingually, with an absorption period of approximately 15 to 25 minutes; swallowing renders it inactive. Users typically experience a pronounced metallic taste and numbness in the mouth that may persist for up to an hour. Doses in the heavy range present a serious risk of overdose and have been associated with deaths. Nasal insufflation is strongly advised against due to the rapid rate of absorption, the difficulty of accurately measuring such small quantities, and the significant potential for fatal overdose.
Duration
Subjective Effects
Effects vary widely by individual, dose, and context.
Physical
The physical effects of 25D-NBOMe can be broken down into several components which progressively intensify proportional to dosage.
Cognitive
The cognitive effects of 25D-NBOMe are remarkably light and underwhelming in comparison to more traditional psychedelics. It is not uncommon for people to report feeling that their thought stream has maintained general normality in its specific style throughout moderate to high doses. At heavy doses, however, mild cognitive alterations become present; this dose seems to be lower in proportion to physical effects when compared to 25I-NBOMe.
Visual
Enhancements
25D-NBOMe presents a mild array of possible visual enhancements.
Geometry
The visual geometry that is present throughout this trip is often described as very similar in appearance to that of DOM. It can be comprehensively described as smooth and organic in style, simple in complexity, fine and zoomed out in detail, slow and fluid in motion, structured in shape, colourful in scheme, bright in colour, and rounded across its corners. In terms of its behaviour, 25D-NBOMe's geometry leads onto level 8A visual geometry with level 8B remaining so far unconfirmed within this substance. It also seems to consistently build up in visual intensity when the tripper stares at a central point. This eventually envelopes the visual field and creates the sensation that the tripper has broken through into a continuously shifting geometric landscape or structure with a vast sense of physical size attributed to it.
Hallucinatory States
25D-NBOMe is capable of producing a full range of hallucinatory states within the level 1 - 3 range extremely consistently within doses higher than of 2mg.
Reagent Testing
Loading reagent data
Pharmacology
Pharmacodynamics
25D-NBOMe acts as a partial agonist at serotonin 5-HT2A receptors, with broader activity reported across the 5-HT2 receptor family.1 The N-benzylmethoxy (NBOMe) substitution confers approximately sixteen-fold greater potency relative to its parent compound 2C-D. Rodent studies have also found that 25D-NBOMe increases dopaminergic signaling in the nucleus accumbens.2
Pharmacokinetics
Dangerous
Highest riskThese combinations are considered extremely harmful and should always be avoided. Reactions to these drugs taken in combination are highly unpredictable and have a potential to cause death.
Unsafe
AvoidThere is considerable risk of physical harm when taking these combinations, they should be avoided where possible.
Caution
Use cautionThese combinations are not usually physically harmful, but may produce undesirable effects, such as physical discomfort or overstimulation. Extreme use may cause physical health issues. Synergistic effects may be unpredictable. Care should be taken when choosing to use this combination.
Tolerance
Serotonergic psychedelics, Other 5-HT2A agonists
Harm Potential
Addiction & Dependence
Psychological
LowWhile formal studies are lacking, 25D-NBOMe appears to have self-regulating qualities due to rapid tolerance buildup lasting 2-3 weeks, which makes compulsive use difficult. However, animal studies have demonstrated reinforcing effects including conditioned place preference, self-administration, and increased dopaminergic signaling in the nucleus accumbens.23
Toxicity
Psychosis Risk
Anxiety and paranoia occur more readily than with many classical psychedelics, possibly due to prominent stimulating properties. Overdose can produce confusion, delusions, panic attacks, and aggressive behavior. Feelings of impending doom may occur during comedowns or at high doses.
Seizure Risk
NBOMes are known to cause seizures and have shown a tendency to cause severe seizures.65 Overdose is often accompanied by seizures.6 The unpredictable dose-response relationship increases seizure risk at doses that might otherwise be considered within normal range.
History & Culture
25D-NBOMe is a derivative of the phenethylamine psychedelic 2C-D, created through the addition of an N-benzyl methoxy group to the parent compound. The substance emerged on the designer drug market around 2010, appearing for sale online before formal scientific characterization had been…
Legality
International
25D-NBOMe is not listed under the 1961 Single Convention on Narcotic Drugs. It is not listed under the 1971 Convention on Psychotropic Substances. It is not listed under the 1988 Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances.
By Country
References
Source Pages
Citations
- (December 2018). Neurochemical pharmacology of psychoactive substituted N-benzylphenethylamines: High potency agonists at 5-HT2A receptors. Biochem Pharmacol, 158, 27–34. https://doi.org/10.1016/j.bcp.2018.09.024123
- (August 2023). Designer Drug, 25D-NBOMe, Has Reinforcing and Rewarding Effects through Change of a Dopaminergic Neurochemical System. ACS Chem Neurosci, 14(15), 2658–2666. https://doi.org/10.1021/acschemneuro.3c0019612
- (June 2025). Toxicodynamic insights of 2C and NBOMe drugs - Is there abuse potential?. Toxicol Rep, 14. https://doi.org/10.1016/j.toxrep.2025.1018901
- (2019). 2-(2,5-Dimethoxy-4-methylphenyl)-N-(2-methoxybenzyl)ethanamine (25D-NBOMe) and N-(2-methoxybenzyl)-2,5-dimethoxy-4-chlorophenethylamine (25C-NBOMe) induce adverse cardiac effects in vitro and in vivo. https://doi.org/10.1016/j.toxlet.2019.01.0041
- (2020). NBOMes–Highly Potent and Toxic Alternatives of LSD. https://pmc.ncbi.nlm.nih.gov/articles/PMC7054380/12
- (2019). Clinical and Toxicological Profile of NBOMes: A Systematic Review. https://doi.org/10.1016/j.psym.2018.11.002123
- (2022). Dark Classics in Chemical Neuroscience: NBOMes. https://pmc.ncbi.nlm.nih.gov/articles/PMC9191638/123
- (n.d.). Therapeutic Goods (Poisons Standard—June 2026) Instrument 2026. legislation.gov.au. https://www.legislation.gov.au/F2026L00633/asmade/2026-05-01/text/original/pdf1
- (n.d.). Neue-Psychoaktive-Substanzen-Gesetz, Anlage I. ris.bka.gv.at. https://ris.bka.gv.at/GeltendeFassung.wxe?Abfrage=Bundesnormen&Gesetzesnummer=200093801
- (n.d.). ANVISA RDC No. 970 of 19 March 2025, updating Annex I to SVS/MS Ordinance No. 344/1998. gov.br. https://www.gov.br/anvisa/en/rules-and-regulations/arquivos/rdc-970-2025-e.pdf1
- (n.d.). ANVISA RDC No. 970 of 19 March 2025, updating Annex I to SVS/MS Ordinance No. 344/1998. gov.br. https://www.gov.br/anvisa/pt-br/assuntos/medicamentos/controlados/lista-substancias1
- (n.d.). ANVISA RDC No. 970 of 19 March 2025, updating Annex I to SVS/MS Ordinance No. 344/1998. planalto.gov.br. https://www.planalto.gov.br/ccivil_03/_ato2004-2006/2006/lei/l11343.htm1
- (n.d.). Controlled Drugs and Substances Act, Schedule III. laws-lois.justice.gc.ca. https://laws-lois.justice.gc.ca/eng/acts/C-38.8/FullText.html1
- (n.d.). Order Amending Schedule III to the Controlled Drugs and Substances Act (2C-phenethylamines), SOR/2016-73. https://gazette.gc.ca/rp-pr/p2/2016/2016-05-04/html/sor-dors73-eng.html1
- (n.d.). Announcement on the Classification and Control of Non-medical-use Narcotic Drugs and Psychotropic Substances. gov.cn. https://www.gov.cn/xinwen/2015-10/01/content_2941700.htm1
- (n.d.). Government Decree on Psychoactive Substances Banned from the Consumer Market. finlex.fi. https://www.finlex.fi/fi/laki/ajantasa/2014/201411301
- (n.d.). Arrêté du 22 février 1990 fixant la liste des substances classées comme stupéfiants, annexe IV. legifrance.gouv.fr. https://www.legifrance.gouv.fr/loda/article_lc/LEGIARTI0000435297511
- (n.d.). Neue-psychoaktive-Stoffe-Gesetz (NpSG). gesetze-im-internet.de. https://www.gesetze-im-internet.de/npsg/anlage_1.html1
- (n.d.). Neue-psychoaktive-Stoffe-Gesetz (NpSG). gesetze-im-internet.de. https://www.gesetze-im-internet.de/npsg/__2.html1
- (n.d.). Neue-psychoaktive-Stoffe-Gesetz (NpSG). gesetze-im-internet.de. https://www.gesetze-im-internet.de/npsg/__3.html1
- (2019). § 4 NpSG. https://www.gesetze-im-internet.de/npsg/__4.html1
- (n.d.). Neue-psychoaktive-Stoffe-Gesetz (NpSG). recht.bund.de. https://www.recht.bund.de/bgbl/1/2026/2/VO.html1
- (n.d.). Ministerial Ordinance Designating Substances under the Pharmaceuticals and Medical Devices Act. mhlw.go.jp. https://www.mhlw.go.jp/stf/houdou/0000079063.html1
- (n.d.). Cabinet Regulation No. 847, Regulations Regarding Narcotic Substances, Psychotropic Substances and Precursors to be Controlled in Latvia. likumi.lv. https://likumi.lv/ta/id/121086-noteikumi-par-latvija-kontrolejamajam-narkotiskajam-vielam-psihotropajam-vielam-un-prekursoriem1
- (n.d.). Opiumwet. wetten.overheid.nl. https://wetten.overheid.nl/BWBR0001941/2025-07-011
- (n.d.). Opiumwet. rijksoverheid.nl. https://www.rijksoverheid.nl/themas/familie-zorg-en-gezondheid/drugs/verbod-op-designerdrugs1
- (n.d.). Forskrift om narkotika (narkotikaforskriften). lovdata.no. https://lovdata.no/dokument/SF/forskrift/2013-02-14-1991
- (n.d.). Forskrift om narkotika (narkotikaforskriften). lovdata.no. https://lovdata.no/dokument/SF/forskrift/2013-02-14-199/KAPITTEL_1#%C2%A731
- (n.d.). Rozporządzenie Ministra Zdrowia z dnia 17 sierpnia 2018 r. w sprawie wykazu substancji psychotropowych, środków odurzających oraz nowych substancji psychoaktywnych (tekst jednolity: Dz. U. 2024 poz. 1139). eli.gov.pl. https://eli.gov.pl/api/acts/DU/2024/1139/text.html1
- (n.d.). Rozporządzenie Ministra Zdrowia z dnia 17 sierpnia 2018 r. w sprawie wykazu substancji psychotropowych, środków odurzających oraz nowych substancji psychoaktywnych (tekst jednolity: Dz. U. 2024 poz. 1139). api.sejm.gov.pl. https://api.sejm.gov.pl/eli/acts/DU/2023/1939/text.html1
- (n.d.). Narcotics Control Act Enforcement Decree. law.go.kr. https://www.law.go.kr/LSW/lsInfoP.do?lsiSeq=282953&chrClsCd=0102021
- (n.d.). Narcotics Control Act Enforcement Decree. law.go.kr. https://www.law.go.kr/LSW/flDownload.do?flSeq=1610662711
- (n.d.). LVFS 2013:15, Medical Products Agency regulations on lists of narcotic drugs. lakemedelsverket.se. https://www.lakemedelsverket.se/sv/lagar-och-regler/foreskrifter/2013-151
- (n.d.). Förordning (1992:1554) om kontroll av narkotika – Bilaga 1 (Sveriges riksdag). https://www.riksdagen.se/sv/dokument-och-lagar/dokument/svensk-forfattningssamling/forordning-19921554-om-kontroll-av-narkotika_sfs-1992-1554/1
- (n.d.). Narcotics List Ordinance, List E. fedlex.admin.ch. https://www.fedlex.admin.ch/eli/cc/2011/363/de1
- (n.d.). Misuse of Drugs Act 1971, Schedule 2, Part I. legislation.gov.uk. https://www.legislation.gov.uk/ukpga/1971/38/schedule/21
- (n.d.). The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014. https://www.legislation.gov.uk/ukdsi/2014/97801111109041
- (n.d.). The Misuse of Drugs Act 1971 (Temporary Class Drug) Order 2013, SI 2013/1294. https://www.legislation.gov.uk/uksi/2013/1294/made1
Further Reading
Automated synthesisInformation aggregated and synthesized using an autonomous workflow built by Josie Kins.
Suggest an edit
Spotted a mistake, an outdated claim, or something missing from the 25D-NBOMe article? Send the editors a private note. Feedback lands in a moderation queue and is never shown on the site.