ACS Chem Neurosci April 2021 PMID 33760580

DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles.

István Ujváry, Rachel Christie, Michael Evans-Brown, Ana Gallegos, Rita Jorge, Joanna de Morais, Roumen Sedefov

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Mentions

53
Peak: 16 in Apr 2024
across 5 sources since Mar 2021

Extended reach

618,360
potential audience

Total likes

5,571

Video views

315,819

Mentions per month

Mar 2021 – Dec 2025

Where it's discussed

  • X / Twitter47 posts
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  • LinkedIn1 posts
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AI synopsis

What people are saying

The discussions reflect a cautious but intrigued tone, with mentions of research articles, chemical structures, and potential societal implications, such as the comparison of nitazenes to fentanyl and comments on drug potency and legal challenges. Words like 'comprehensive review' and references to specific scientific papers convey a serious attitude, while some social remarks reveal skepticism about drug trends, demonstrating a nuanced overall perception of the publication’s importance.

AgreementNeither agree nor disagree

Posts show mixed reactions, with some acknowledging the depth of the review but also some dismissive or skeptical comments about the drugs' relevance or use.

InterestModerate interest

There is a generally moderate interest, especially among those involved in research, drug safety, or forensic analysis, but some posts are more superficial or off-topic.

EngagementModerate engagement

The discussion includes references to detailed chemical studies and regulatory impacts, indicating thoughtful engagement, but some comments are brief or informal.

ImpactModerate impact

The publication is seen as impactful due to its relevance to public health and drug policy, with mentions of drug potency and legal issues highlighting its significance.

Abstract in brief

  • The text discusses the history and chemistry of benzimidazoles like etonitazene, which are potent painkillers developed in the 1950s, and highlights their opioid-like effects and potential for misuse.
  • It explains that some of these compounds, such as isotonitazene, are not legally controlled and have appeared on illegal drug markets, causing fatalities.
  • The review emphasizes ongoing research into these substances' pharmacology, safety concerns, and regulatory challenges, as well as exploring related compounds with similar properties.]

Top posts

Most liked on X and Bluesky
Professor_615
@Professor_615 · X

Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 3, 2024 · 291 likes · 9 shares · 1,423 followers View post →
István Ujváry
@IUjvary · X

Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with opioid-like properties, and the recent emergence & subsequent health impact of some of these opioid NPS has just been published. https://t.co/oLs6YHWo7S

Apr 8, 2021 · 25 likes · 9 shares · 457 followers View post →
Christophe Stove
@christophestove · X

Flunitazene: the next 'nitazene' to appear in cases. Activity data shown below (panel D, pink) - for more background on activity, check out research paper by @Marthevdp et al. (https://t.co/w634uW5ekG) & #darkclassics review by @IUjvary et al. (https://t.co/MVoe01jthP)(2d online) https://t.co/EydNliqpSb https://t.co/PVk5osKBW0

Mar 26, 2021 · 6 likes · 1,549 followers View post →
George Dawson
@dawso007 · X

@RyanMarino https://t.co/jjwgHkKm3M

Feb 18, 2022 · 3 likes · 7,819 followers View post →
Christophe Stove
@christophestove · X

@judithyates1 @BinghamInfo @WeDinos @drugsdotie See https://t.co/w634uWmPJg for our work on these -and other- 'nitazenes', and also don't forget to check out the 'DARK Classics' review by @IUjvary on etonitazene and related benzimidazoles. https://t.co/MVoe01B4Gp

Dec 14, 2022 · 3 likes · 1 share · 1,549 followers View post →
Christophe Stove
@christophestove · X

#Nitazenes being mentioned by Mike as 'attractive to dealers', owing to high potency vs relatively cheap synthesis. Reviewed by @IUjvary (https://t.co/9eoEz2G0Wr), referring to work by @Marthevdp (https://t.co/RUpQ7kBhV4). https://t.co/y3oXYxBM94

Sep 20, 2021 · 2 likes · 1,549 followers View post →

All mentions

Riccardo C. Gatti
@RiccardoGatti · X

@mariazuppello @debe Ho trovato anche questo: "DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles," pubblicato su ACS Chemical Neuroscience nel 2021 (Vol. 12, N. 7, pagine 1072–1092). Dovrebbe essere un revisione approfondita sul tema dei nitazeni. Non sono in

Jun 13, 2025 · 2 likes · 1,311 followers View post →
István Ujváry
@IUjvary · X

Key reviews cited in WHO"s Critical Review Reports: DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles. doi: 10.1002/dta.3519 Hexahyrocannabinol and& closely related semi-synthetic cannabinoids: A comprehensive review. doi: 10.1021/acschemneuro.1c00037 https://t.co/ASMITfHol1

Mar 16, 2025 · 1 like · 457 followers View post →
Cérebro
@RelativeBrain · X

@cacaph @jonassmarques Uns artigos, só titulo "Synthesis, Chemical Characterization, and μ-Opioid Receptor Activity Assessment of the Emerging Group of “Nitazene” 2-Benzylbenzimidazole Synthetic Opioids "DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles"

Jul 21, 2024 · 1 like · 2,385 followers View post →
István Ujváry
@IUjvary · X

Itt appears that the important carbamoyl substituent on the benzylic C-atom is missing. See the potent Compound 54 (R1 = CONH2) in our 2021-review. DOI: 10.1021/acschemneuro.1c00037 https://t.co/jTxNfMtuUc https://t.co/eOQOr9gIGv

Jul 8, 2024 · 457 followers View post →
Gregory Lammers
@gergosaur · X

Nitazenes: The Next Fentanyl? https://t.co/dHuN2Is3z9 via @YouTube

Apr 22, 2024 · 266 followers View post →
YouR Beautiful
@xoxHonkHonkxox · X

Nitazenes: The Next Fentanyl? https://t.co/MGpaujE3ou via @YouTube

Apr 7, 2024 · 86 followers View post →
Professor_615
@Professor_615 · X

@javioffa30 I think you should give Tranq a try I hear it’s better for you. Or any of the zine drugs they are stronger than fent https://t.co/EBJl7K0wNy

Apr 5, 2024 · 1,423 followers View post →
Ronald Edwin Locke
@realronlockeii · X

Nitazenes: The Next Fentanyl? https://t.co/8CanUP7Bb0 via @YouTube

Apr 5, 2024 · 2,418 followers View post →
Trab$oSincere.dec20th
@Ttutmoze27 · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 5, 2024 · 9 shares · 1,636 followers View post →
Louis Schulte IV
@IvSchulte · X

https://t.co/M54VMFo1Mj

Apr 5, 2024 · 3 followers View post →
Louis Schulte IV
@IvSchulte · X

https://t.co/M54VMFozBR

Apr 5, 2024 · 3 followers View post →
♡
@pxssyfairy_x · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 4, 2024 · 9 shares · 211,341 followers View post →
Mons Deangelo
@MonsDeangelo · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 4, 2024 · 9 shares · 398 followers View post →
This_Guy®️
@TheKing_Richie · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 4, 2024 · 9 shares · 1,922 followers View post →
G
@G__thnx · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 4, 2024 · 9 shares · 1,846 followers View post →
Tay
@ReallyMissTay · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 4, 2024 · 9 shares · 16,349 followers View post →
Scheming Tensei Coalition Imperialist
@mayadrainrott · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 3, 2024 · 9 shares · 500 followers View post →
J0hnny
@FuckMePleaseAw · X

RT @Professor_615: Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 3, 2024 · 9 shares · 282 followers View post →
Professor_615
@Professor_615 · X

Once the Fentanyl doesn’t work here is where everyone is going to https://t.co/xVgQvVcTbh

Apr 3, 2024 · 291 likes · 9 shares · 1,423 followers View post →
das Framke
@Futureview · X

Nitazenes https://t.co/CMdDNxY668

Mar 19, 2024 · 1,970 followers View post →
Wondering With Jesus
@Barken_Stock · X

Nitazenes: The Next Fentanyl? https://t.co/XUouOZbvtW via @YouTube #NextFentanyl

Mar 15, 2024 · 1 like · 680 followers View post →
Adam Daniels
@AdamDaniel15547 · X

https://t.co/TcJoseAAeI

Mar 7, 2024 · 14 followers View post →
István Ujváry
@IUjvary · X

@oohheyk8 @clairezagorski From a recent review: https://t.co/Oj7URAXAxc I believe that the introduction of fentanyl invented around the same time by Paul Janssen played also a role in the shelving by CIBA of such 2-benzylbenzimidazoles. https://t.co/pK4nwQ3z2Z

Nov 19, 2023 · 1 like · 457 followers View post →
István Ujváry
@IUjvary · X

The many faces of benzimidazole-containing bioactive substances. A reminder. https://t.co/Oj7URAXAxc https://t.co/1b4uATrrho https://t.co/V7w3Dz3MdE

Aug 21, 2023 · 457 followers View post →
Tim Bingham
@BinghamInfo · X

RT @christophestove: @judithyates1 @BinghamInfo @WeDinos @drugsdotie See https://t.co/w634uWmPJg for our work on these -and other- 'nitazen…

Dec 14, 2022 · 1 share · 1,920 followers View post →
Christophe Stove
@christophestove · X

@judithyates1 @BinghamInfo @WeDinos @drugsdotie See https://t.co/w634uWmPJg for our work on these -and other- 'nitazenes', and also don't forget to check out the 'DARK Classics' review by @IUjvary on etonitazene and related benzimidazoles. https://t.co/MVoe01B4Gp

Dec 14, 2022 · 3 likes · 1 share · 1,549 followers View post →
Sydney
@larkmjc · X

people naming new drugs like they woke up and found their bank accounts had been cleared out. https://t.co/kHMLeKrIiV

Dec 6, 2022 · 1,560 followers View post →
George Dawson
@dawso007 · X

@RyanMarino https://t.co/jjwgHkKm3M

Feb 18, 2022 · 3 likes · 7,819 followers View post →
Christophe Stove
@christophestove · X

#Nitazenes being mentioned by Mike as 'attractive to dealers', owing to high potency vs relatively cheap synthesis. Reviewed by @IUjvary (https://t.co/9eoEz2G0Wr), referring to work by @Marthevdp (https://t.co/RUpQ7kBhV4). https://t.co/y3oXYxBM94

Sep 20, 2021 · 2 likes · 1,549 followers View post →
nadia
@cretanadia · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 26, 2021 · 9 shares · 1,205 followers View post →
Nic
@DrugPolicyAndy · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 9, 2021 · 9 shares · 196 followers View post →
Dōt
@conker4 · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 179 followers View post →
Dr. Larry, PhD-MBA
@larrythewarrior · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 517 followers View post →
BryanRoth
@zenbrainest · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 17,151 followers View post →
Toxicovigilance
@toxicovigilance · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 1,131 followers View post →
Mark Anderson
@ourmark36 · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 1,166 followers View post →
Jonathon Arnold
@JonathonCArnold · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 1,727 followers View post →
Christophe Stove
@christophestove · X

RT @IUjvary: Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with…

Apr 8, 2021 · 9 shares · 1,549 followers View post →
István Ujváry
@IUjvary · X

Our comprehensive overview on 6 decades of med chem research on 2-benzylbenzimidazole derivatives & their close analogues with opioid-like properties, and the recent emergence & subsequent health impact of some of these opioid NPS has just been published. https://t.co/oLs6YHWo7S

Apr 8, 2021 · 25 likes · 9 shares · 457 followers View post →
Ping Wang
@wp78499 · X

RT @Cayman_Forensic: DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles - A nice review on Nitazenes by @IUjvar…

Mar 30, 2021 · 1 share · 109 followers View post →
Cayman Chemical
@Cayman_Forensic · X

DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles - A nice review on Nitazenes by @IUjvary and team: https://t.co/UYNSc7eoh7 https://t.co/H6LGmh92FS

Mar 30, 2021 · 1 share · 899 followers View post →
George Dawson
@dawso007 · X

DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles https://t.co/KCerneSif5

Mar 28, 2021 · 7,819 followers View post →
Christophe Stove
@christophestove · X

Flunitazene: the next 'nitazene' to appear in cases. Activity data shown below (panel D, pink) - for more background on activity, check out research paper by @Marthevdp et al. (https://t.co/w634uW5ekG) & #darkclassics review by @IUjvary et al. (https://t.co/MVoe01jthP)(2d online) https://t.co/EydNliqpSb https://t.co/PVk5osKBW0

Mar 26, 2021 · 6 likes · 1,549 followers View post →
István Ujváry
@IUjvary · X

In the mouse tail flick assay of antinociception, flunitazene sc was found to be as potent as morphine nicely reflecting in vitro data. https://t.co/AKaWxTOAcP https://t.co/mfhCIbXUUg https://t.co/an27E104cZ

Mar 26, 2021 · 2 likes · 457 followers View post →
Christophe Stove
@christophestove · X

RT @IUjvary: The paper was published promptly (within 10 hours) with required changes! Incredible fast & quality work of the editorial offi…

Mar 25, 2021 · 1 share · 1,549 followers View post →
István Ujváry
@IUjvary · X

The paper was published promptly (within 10 hours) with required changes! Incredible fast & quality work of the editorial office @ACSChemNeurosci https://t.co/Oj7URAXAxc

Mar 25, 2021 · 1 like · 1 share · 457 followers View post →
Christophe Stove
@christophestove · X

Online at @ACSChemNeurosci, just a few hours after the proofs were returned: "DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles": #RecommendReading (take your time

Mar 24, 2021 · 1,549 followers View post →
Drug Misuse: Nitazene & Brorphine | PDF | Morphine | Opioid
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10.1021/acschemneuro.1c00037. Epub 2021 Mar 24. PMID: 33760580. United Nations Office on Drugs and Crime (2020). 'UNODC EWA: Brorphine, a newly emerging ...

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Overview of Affinities of Benzimidazole Opioids : r/Opioid_RCs
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Overview of Affinities of Benzimidazole Opioids · https://sci-hub.hkvisa.net/10.1021/acschemneuro.1c00037. This Study is for Etonitazepipne:.

Sep 22, 2022 View →