ArticleThe American journal of drug and alcohol abuse2023
Tusi: a new ketamine concoction complicating the drug landscape.
Article in The American journal of drug and alcohol abuse, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Considering unintentional exposure when testing for cocaine use via oral fluid testing.Forensic science international · 2026Article
- Surveillance of emerging drug trends: utilizing the National Drug Early Warning System.Current opinion in psychiatry · 2026Review
- Emergence of synthetic drugs in South America: insights from Brazil, Chile, and Colombia.Harm reduction journal · 2026Review
- Drug Checking Services in Latin America vs. the United States: Staff Perspectives, Program Characteristics, and Barriers to Implementation.medRxiv : the preprint server for health sciences · 2026Article
- TUSI Valve: Echocardiographic and Pathologic Correlates of a Novel Drug-Induced Valvular Disease-a Case Series.CASE (Philadelphia, Pa.) · 2026Article
- Detection of Party Drugs on Mobile Phones in Relation to Self-Reported Use and Oral Fluid Detection Among NYC Nightclub Attendees.Journal of studies on alcohol and drugs · 2026Article
- Peer-led drug checking in Chile: a case study of the country's first harm reduction service at electronic music events.Harm reduction journal · 2026Article
- Deaths following illicit ketamine use in England, Wales and Northern Ireland 1999-2024: An update report to inform the reclassification debate.Journal of psychopharmacology (Oxford, England) · 2026Article
- Personalized Multimodal and Opioid-Sparing Analgesia for Postoperative Pain Management: Enhancing Recovery and Addressing the Post-Discharge Gap.Journal of pain research · 2026Review
- Trends in nonmedical ketamine use, poisonings, related deaths, pharmaceutical diversions, and law enforcement seizures: results from annual population-based repeated cross-sectional studies.Lancet regional health. Americas · 2025Article
- Tusi use among the New York City nightclub-attending population.Addiction (Abingdon, England) · 2025Article
- Article
- Trends in ketamine use among nightclub attendees in New York City, 2017-2024.The International journal on drug policy · 2025Article
- Understanding social media discourse on antidepressants: unsupervised and sentiment analysis using X.European psychiatry : the journal of the Association of European Psychiatrists · 2025Article
- Trends in poisonings involving ketamine in the United States, 2019-2023.Drug and alcohol dependence · 2025Article
- Article
- An Update on the Epidemiology of Tusi ("Pink Cocaine").Current addiction reports · 2025Article
- Assessment of a Single Quadrupole Mass Spectrometer Combined with an Atmospheric Solids Analysis Probe for the On-Site Identification of Amnesty Bin Drugs.Journal of the American Society for Mass Spectrometry · 2024Article
- Trends in reported and biologically confirmed drug use among people who use ecstasy in the nightclub/festival-attending population, 2016-2022.Drug and alcohol dependence reports · 2023Article
- Trends and correlates of discordant reporting of drug use among nightclub/festival attendees, 2019-2022.Clinical toxicology (Philadelphia, Pa.) · 2023Article
Corrections and comments
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Authors and funding
1 author.
Funding
Abstract
A drug concoction called tusi has emerged in Latin America and in Europe and is now beginning to acquire popularity in the United States. "Tusi" is a phonetic translation of "2C," a series of psychedelic phenethylamines. The concoction is also sometimes referred to as "pink cocaine" as it typically comes in the form of pink powder. However, despite its name, the concoction rarely contains 2C series drugs. Multiple drug checking studies have found that the majority of tusi samples contain ketamine, often combined with 3,4-methylenedioxymethamphetamine (MDMA), methamphetamine, cocaine, opioids, and/or new psychoactive substances. The tusi phenomenon complicates the drug landscape because it has the potential to confuse both people who use it and researchers alike. People using may think the drug is 2C/2C-B, and they may also be unaware that the concoction tends to consist of ketamine and a wide variety of other drugs. Unintentional exposure to its contents can lead to increased risk of adverse effects. The tusi phenomenon also has the potential to complicate drug research as unknown exposure to drugs like ketamine and MDMA will lead to underreporting of use. A combination of self-report and toxicological testing may be needed to inform the most accurate estimates of use. Both researchers and people at risk for use need to be informed about this new concoction. Drug researchers need to be cognizant about the way they query use, and people at risk for using need to be educated about the possible contents of tusi and associated dangers.
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