25B-NBOMe

Revision as of 22:25, 3 January 2019 by >Dextromethorphan (added od section)

25B-NBOMe can be fatal at heavy doses.[1]

It is strongly discouraged to take large amounts of this substance or to insufflate (snort) it. Please see this section for more details.

Summary sheet: 25B-NBOMe


25B-NBOMe (also known as Cimbi-36 and 2C-B-NBOMe) is novel synthetic psychedelic substance of the phenethylamine chemical class. It produces an array of visually-dominant and stimulating psychedelic effects when administered.

25B-NBOMe
Chemical Nomenclature
Common names 25B-NBOMe
Substitutive name 2C-B-NBOMe, BOM 2-CB, Cimbi-36, New Nexus, Nova
Systematic name [[systematic name::2-(4-Bromo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl) methyl]ethanamine]]
Class Membership
Psychoactive class Psychedelic
Chemical class Phenethylamine
Routes of Administration

WARNING: Always start with lower doses due to differences between individual body weight, tolerance, metabolism, and personal sensitivity. See responsible use section.





Sublingual
Dosage
Threshold 50 µg
Light 100 - 300 µg
Common 300 - 500 µg
Strong 500 - 700 µg
Heavy 25B-NBOMe can be fatal at heavy doses.[1]
Duration
Total 8 - 12 hours
Onset 20 - 40 minutes
Come up 30 - 90 minutes
Peak 4 - 6 hours
Offset 2 - 4 hours
After effects 2 - 6 hours
Insufflated
Dosage
Threshold 25 µg
Light 50 - 200 µg
Common 200 - 350 µg
Strong 350 - 500 µg
Heavy 25B-NBOMe can be fatal at heavy doses.[1]
Duration
Total 8 - 12 hours
Onset 2 - 5 minutes
After effects 2 - 6 hours






DISCLAIMER: PW's dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.

Interactions
2C-T-X
5-MeO-xxt
Caffeine
Cannabis
DOx
MAOIs
MDMA
MXE
Amphetamines
aMT
Cocaine
DXM
Tramadol
Lithium

The name 25B-NBOMe, which short-hand for 2C-B-NBOMe, is a derivative of the phenethylamine psychedelic 2C-B. It was discovered in 2004 by Ralf Heim at the Free University of Berlin.[2] It acts as a potent partial agonist for the 5-HT2A receptor.[3] It has been used in clinical trials with an evaluation dose for safety consideration to humans of only 1 microgram. Such a dose was determined to be only 1/300th the dose expected to be hallucinogenic to humans and that recreational use would greatly exceed doses determined to be safe to humans.[3]

Anecdotal reports from users suggest 25B-NBOMe to be an active hallucinogen at a dose of as little as 250–500 µg, making it a similar potency to other phenethylamine derived hallucinogens such as Bromo-DragonFLY.[4] It is worth noting that compounds of the NBOMe class are not orally active and should therefore be taken sublingually by placing the substance into one's mouth and allowing it to slowly absorb over a period of 15-30 minutes.

This substance had no history of human use before being sold online as a designer drug in 2010.[citation needed] Extremely little is known about the pharmacological properties, metabolism, and toxicity of 25B-NBOMe in humans, and numerous members of the 25x-NBOMe series have been associated with hospitalizations and deaths. Along with its highly sensitive dose-response and unpredictable effects, many reports also suggest that this substance may be overly difficult to use safely. Therefore it is highly advised to approach this poorly understood, potentially deadly psychedelic substance with the proper amount of precaution and harm reduction practices if choosing to use it.

Chemistry

 
A comparison of 25B-NBOMe and 2C-B.

25B-NBOMe or 2C-B-NBOMe is a serotonergic N-benzyl derivative of the substituted phenethylamine psychedelic known as 2C-B. 25B-NBOMe is a substituted phenethylamine with methoxy groups CH3O- attached to carbons R2 and R5 as well as a bromine atom attached to carbon R4. It differs from 2C-B structurally through a substitution on the amine (NH2) with a 2-methoxybenzyl (BOMe) group. 25B-NBOMe shares this 2-methoxybenzyl substitution with other chemicals of the NBOMe family. This NBOMe addition contains a methoxy ether CH3O- bound to a benzene ring at R2.

Pharmacology

Further information: Serotonergic psychedelic

25B-NBOMe has efficacy at the 5-HT2A receptor where it acts as a potent partial agonist.[5][6][7][8] However, the role of these interactions and how they result in the psychedelic experience continues to remain elusive.

Subjective effects

Disclaimer: The effects listed below cite the Subjective Effect Index (SEI), an open research literature based on anecdotal user reports and the personal analyses of PsychonautWiki contributors. As a result, they should be viewed with a healthy degree of skepticism.

It is also worth noting that these effects will not necessarily occur in a predictable or reliable manner, although higher doses are more liable to induce the full spectrum of effects. Likewise, adverse effects become increasingly likely with higher doses and may include addiction, severe injury, or death ☠.

Physical effects
 

Visual effects
 

Cognitive effects
 


Experience reports

There are currently no anecdotal reports which describe the effects of this compound within our experience index. Additional experience reports can be found here:

Toxicity and harm potential

25B-NBOMe is a relatively new substance, and little is known about its pharmacological risks or its interaction with other substances. The lethal dosage has not yet been determined. One case has been reported on where 25B-NBOMe was identified as the cause of death for a 17-year-old boy.[9]

It is advised that due to 25B-NBOMe's extreme potency it should not be insufflated as this method of administration is potentially fatal at heavy dosages.[10]

25B-NBOMe has been used in clinical trials with an evaluation dose for safety consideration to humans of only 1 microgram; Such a dose is 300× lower than the dose expected to be hallucinogenic to humans and it is expected that recreational use would greatly exceed doses determined to be safe to humans.[11]

It is strongly recommended that one use harm reduction practices when using this substance.

Tolerance and addiction potential

25B-NBOMe is not habit-forming and the desire to use it can actually decrease with use. It is most often self-regulating.

Tolerance to the effects of 25B-NBOMe are built almost immediately after ingestion. After that, it takes about 1 week for the tolerance to be reduced to half and 2 weeks to be back at baseline (in the absence of further consumption). 25B-NBOMe presents cross-tolerance with [[Cross-tolerance::all psychedelics]], meaning that after the consumption of 25B-NBOMe all psychedelics will have a reduced effect.

Overdose

Due to the very high potency and seemingly unpredictable effects the margin between a normal and an overdose of NBOMe compounds is extremely small when compared to many other substances. The exact toxic dose is unclear since it seems to depend a lot on personal physiology, rather than predominantly dose. However, various anecdotal reports suggest that dangerous side effects begin to appear when exceeding 1000 μg and it possibly becoming lethal for the more sensitive people at roughly 2000 μg. Reports of other people surviving much higher doses, sometimes even without any major side effects have been documented as well.

There is also the uncertainty of dosage on blotter paper since it is rather difficult to lay such an exact dosage. Insufflating, vaporizing or drinking tinctures of this substance is highly discouraged because of this and has been tied to many documented deaths[12][13][1]. One study found that 25I‐NBOMe and 25C‐NBOMe blotter papers contained 'hotspots' with higher quantities of the drug, implying an inherent risk of overdosing.[14]

The overdose effects of NBOMes are typically a dangerously high heart rate, blood pressure, hyperthermia and significant vasoconstriction[15][16] also accompanied by confusion, delusions, panic attacks, aggressive behavior, numbness or pain, amnesia and often seizures. The risks in an overdose include anything from organ failure to cardiac arrest and death[citation needed]. There are also multiple reports of people lethally injuring themselves or falling to death[17][18]. Benzodiazepines or antipsychotics can help with the psychological effects during an overdose although medical attention should always be called in even a possible overdose of 25I-NBOMe.

Dangerous interactions

Warning: Many psychoactive substances that are reasonably safe to use on their own can suddenly become dangerous and even life-threatening when combined with certain other substances. The following list provides some known dangerous interactions (although it is not guaranteed to include all of them).

Always conduct independent research (e.g. Google, DuckDuckGo, PubMed) to ensure that a combination of two or more substances is safe to consume. Some of the listed interactions have been sourced from TripSit.

  • [[Wikipedia:Lithium_(medication)|DangerousInteraction::Lithium]] - Lithium is commonly prescribed for the treatment of bipolar disorder. There is a large body of anecdotal evidence that suggests taking it with psychedelics significantly increases the risk of psychosis and seizures. As a result, this combination is strictly discouraged.
  • "[[UncertainInteraction" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]] - Cannabis may have an unexpectedly strong and unpredictable synergy with the effects of 25B-NBOMe. Caution is advised with this combination as it can significantly increase the risk of adverse psychological reactions like anxiety, paranoia, panic attacks, and psychosis. Users are advised to start off with only a fraction of their normal cannabis dose and take long breaks between hits to avoid unintentional overdose.
  • "[[UncertainInteraction" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]] - Stimulants like amphetamine, cocaine or methylphenidate affect many parts of the brain and alter dopaminergic function. This combination can increase the risk of anxiety, paranoia, panic attacks, and thought loops. This interaction may also result in an elevated risk of mania and psychosis.[citation needed]
  • "[[UnsafeInteraction" contains a listed "[" character as part of the property label and has therefore been classified as invalid.]] - Tramadol is well-documented to lower the seizure threshold[19] and psychedelics may act to trigger seizures in susceptible individuals.[citation needed]

Legality

  • Austria: 25B-NBOMe is illegal to possess, produce and sell under the NPSG (Neue-Psychoaktive-Substanzen-Gesetz Österreich).[citation needed]
  • Brazil - Possession, production and sale is illegal as it is listed on Portaria SVS/MS nº 344.[20]
  • China: As of October 2015 25B-NBOMe is a controlled substance in China.[21]
  • Germany - Possession, production and sale is illegal.[22]
  • United Kingdom - 25B-NBOMe is a Class A drug in the United Kingdom as a result of the N-benzylphenethylamine catch-all clause.[23]
  • Sweden: 25B-NBOMe is classed as Schedule I.[24]
  • United States: On Nov 15, 2013, the DEA added 25B-NBOMe to Schedule I using their emergency scheduling powers, making it "temporarily" in Schedule I for 2 years.[25]
  • Latvia: 25B-NBOMe is a Schedule I controlled substance.[26]
  • New Zealand: 25B-NBOMe is a Schedule 2 controlled substance in New Zealand.[27]
  • Canada: 25B-NBOMe would be considered Schedule III as it is a derivative of 2,5-dimethoxyphenethylamine.[28]
  • Italy: In Italy 25B-NBOMe is a Schedule 1 controlled substance, meaning it's illegal in this state.[29]

See also

References

  1. 1.0 1.1 1.2 1.3 Erowid NBOMe (Other or Unknown NBOMe-Compound) Vault : Fatalities / Deaths 
  2. Ralf Heim (February 28, 2010). "Synthese und Pharmakologie potenter 5-HT2A-Rezeptoragonisten mit N-2-Methoxybenzyl-Partialstruktur. Entwicklung eines neuen Struktur-Wirkungskonzepts." (in German). diss.fu-berlin.de. Retrieved 2013-05-10.
  3. 3.0 3.1 Hansen, M.; Phonekeo, K.; Paine, J. S.; Leth-Petersen, S.; Begtrup, M.; Bräuner-Osborne, H.; Kristensen, J. L. (2014). "Synthesis and Structure-Activity Relationships of N-Benzyl Phenethylamines as 5-HT2A/2C Agonists". ACS Chemical Neuroscience. 5 (3): 243–9. PMID 24397362. https://doi.org/10.1021/cn400216u
  4. Bromo-Dragonfly Dosage by Erowid | https://erowid.org/chemicals/bromo_dragonfly/bromo_dragonfly_dose.shtml
  5. Synthesis and pharmacology of potent 5-HT 2A receptor agonists with N-2-methoxybenzyl partial structure | http://www.diss.fu-berlin.de/diss/receive/FUDISS_thesis_000000001221
  6. Theoretical study of the interaction of agonists with the 5-HT2A receptor | http://epub.uni-regensburg.de/12119/
  7. Theoretical studies on the interaction of partial agonists with the 5-HT2A receptor | http://link.springer.com/article/10.1007%2Fs10822-010-9400-2
  8. Synthesis and Structure–Activity Relationships of N-Benzyl Phenethylamines as 5-HT2A/2C Agonists | http://pubs.acs.org/doi/abs/10.1021/cn400216u
  9. Designer Drug Identified As Cause Of Plano Teen’s Death | http://dfw.cbslocal.com/2015/02/19/designer-drug-identified-as-cause-of-plano-teens-death/
  10. http://www.erowid.org/chemicals/nbome/nbome_death.shtml
  11. Preclinical Safety Assessment of the 5-HT2A Receptor Agonist PET Radioligand [11C]Cimbi-36 | https://bitnest.netfirms.com/external.php?id=%257DbxUgX%255DCY%2504%2505wzx%2519%2505VYL%2502RI%257E%2560d
  12. Erowid 25I-NBOMe (2C-I-NBOMe) Vault : Fatalities / Deaths 
  13. Erowid 2C-C-NBOMe (25C-NBOMe) Vault : Fatalities / Deaths 
  14. Lützen, E., Holtkamp, M., Stamme, I., Schmid, R., Sperling, M., Pütz, M., Karst, U. (April 2020). "Multimodal imaging of hallucinogens 25C‐ and 25I‐NBOMe on blotter papers". Drug Testing and Analysis. 12 (4): 465–471. doi:10.1002/dta.2751. ISSN 1942-7603. 
  15. Marchi, N. C., Scherer, J. N., Fara, L. S., Remy, L., Ornel, R., Reis, M., Zamboni, A., Paim, M., Fiorentin, T. R., Wayhs, C. A. Y., Von Diemen, L., Pechansky, F., Kessler, F. H. P., Limberger, R. P. (1 March 2019). "Clinical and Toxicological Profile of NBOMes: A Systematic Review". Psychosomatics. 60 (2): 129–138. doi:10.1016/j.psym.2018.11.002. ISSN 0033-3182. 
  16. Yoon, K. S., Yun, J., Kim, Y.-H., Shin, J., Kim, S. J., Seo, J.-W., Hyun, S.-A., Suh, S. K., Cha, H. J. (1 April 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". Toxicology Letters. 304: 50–57. doi:10.1016/j.toxlet.2019.01.004. ISSN 0378-4274. 
  17. https://psychonautwiki.org/wiki/File:Nbome_death_news_i2013e0190_disp.jpg
  18. https://psychonautwiki.org/wiki/File:Nbome_death_news_i2013e0191_disp.jpg
  19. Talaie, H.; Panahandeh, R.; Fayaznouri, M. R.; Asadi, Z.; Abdollahi, M. (2009). "Dose-independent occurrence of seizure with tramadol". Journal of Medical Toxicology. 5 (2): 63–67. doi:10.1007/BF03161089. ISSN 1556-9039. 
  20. http://portal.anvisa.gov.br/documents/10181/3115436/%281%29RDC_130_2016_.pdf/fc7ea407-3ff5-4fc1-bcfe-2f37504d28b7
  21. 关于印发《非药用类麻醉药品和精神药品列管办法》的通知 | http://www.sfda.gov.cn/WS01/CL0056/130753.html
  22. BtMG Anlage I | https://www.gesetze-im-internet.de/btmg_1981/anlage_i.html
  23. United Kingdom. (2014). Misuse of Drugs Act 1971 (S.I. 2014/1106). London: The Stationery Office Limited. Retrieved July 5, 2017, from http://www.legislation.gov.uk/uksi/2014/1106/made
  24. Läkemedelsverkets författningssamling - http://www.lakemedelsverket.se/upload/lvfs/LVFS_2013-15.pdf
  25. http://www.justice.gov/dea/divisions/hq/2013/hq111513.shtml
  26. Noteikumi par Latvijā kontrolējamajām narkotiskajām vielām, psihotropajām vielām un prekursoriem (2,5-Dimetoksifeniletānamīni) | http://likumi.lv/doc.php?id=121086
  27. http://www.legislation.govt.nz/act/public/1975/0116/latest/whole.html#DLM436576
  28. Controlled Drugs and Substances Act (S.C. 1996, c. 19) |http://laws-lois.justice.gc.ca/eng/acts/C-38.8/page-12.html#h-28
  29. Tabella 1 Stupefacenti dello Stato Italiano |http://www.salute.gov.it/imgs/C_17_pagineAree_3729_listaFile_itemName_0_file.pdf