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1.
Int J Drug Policy ; 123: 104258, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38056221

RESUMO

INTRODUCTION: Drug use and trading are typically social activities; however, supply through cryptomarkets can occur without any in-person social contact. People who use drugs alone may be at higher risk of experiencing harms, for example, due to lack of others who may call for emergency assistance. Alternatively, cryptomarkets may be a source of harm reduction information and drugs with better-known content and dose, potentially reducing the risk of adverse events. This study examines relationships between cryptomarket use, drug-using social networks and adverse drug events for MDMA, cocaine and LSD. METHOD: A subsample of 23,053 respondents from over 70 countries was collected in the 2018 Global Drug Survey. People who reported using MDMA, cocaine or LSD were asked about using cryptomarkets to purchase these drugs; any adverse drug events requiring medical treatment (combining seeking treatment and should have sought treatment but did not); and social networks who they had used the specific drug with. All measures referred to the last 12 months, hereon referred to as 'recent'. Binary logistic regressions examined relationships between cryptomarket use, drug-using social networks, and adverse drug events, controlling for age, gender, and frequency of drug use. RESULTS: Adverse events from any drug type were low (5.2%) and for each drug; MDMA (3.5%); cocaine (3.3%); and LSD (3.5%). After controlling for covariates, recent cryptomarket use was associated with increased likelihood of having no drug-using network for each drug type. People who recently used cryptomarkets were more likely to report adverse cocaine (AOR = 1.70 (1.22-2.37)) and LSD (AOR = 1.58 (1.12-2.09)) events. For those reporting a network size >1, network characteristics did not differ with recent cryptomarket use; however, those reporting recent cryptomarket use were more likely to report adverse LSD events (AOR = 1.86 (0.99-3.51)). CONCLUSION: People who reported purchasing drugs from cryptomarkets more commonly reported having no drug-using network, and cryptomarket purchase was associated with reported adverse events. Our results support the notion that cryptomarket use increases drug-related harm, but further disentanglement of multiple complex mechanisms is needed in future research.


Assuntos
Cocaína , Tráfico de Drogas , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Drogas Ilícitas , N-Metil-3,4-Metilenodioxianfetamina , Transtornos Relacionados ao Uso de Substâncias , Humanos , Drogas Ilícitas/efeitos adversos , Estudos Transversais , Comércio , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Rede Social , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia
2.
Int J Drug Policy ; 73: 210-218, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-30711411

RESUMO

We alert readers to the value of using unsolicited online data in drug policy research by highlighting web-based content relevant to drug policy generated by distinct types of actor: people who consume, supply or produce illicit drugs, online news websites and state or civil society organisations. These actors leave 'digital traces' across a range of internet platforms, and these traces become available to researchers to use as data - although they have not been solicited by researchers, and so have not been created specifically to fulfil the aims of research projects. This particular type of data entails certain strengths, limitations and ethical challenges, and we aim to assist researchers in understanding these by drawing on selected examples of published research using unsolicited online data that have generated valuable drug policy insights not possible using other traditional data sources. We argue for the continued and increased importance of using unsolicited online data so that drug policy scholarship keep pace with recent developments in the global landscape of drug policies and illicit drug practices.


Assuntos
Drogas Ilícitas/provisão & distribuição , Internet , Política Pública , Coleta de Dados/métodos , Humanos , Pesquisa/organização & administração , Projetos de Pesquisa
3.
Drug Alcohol Depend ; 93(3): 191-6, 2008 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-17945437

RESUMO

This article considers the informed consent process in relation to carrying out research with intoxicated participants in 'field' research settings. There is little discussion in the literature of the potential problems that the intoxication of research participants may pose to research. Intoxication is a potential problem for all researchers but is heightened in field research that takes place in settings where participants are likely to be intoxicated, such as licensed venues, in drug consumption rooms, or police custody suites. The risks to research participants that intoxication poses should not be resolved by electing not to do research with intoxicated participants; it is argued that these risks can be managed to some extent, and are offset by the benefits of such research. Moreover, intoxication (and the impairment of cognitive functions relevant to valid informed consent) may not always be identifiable through behavioural or biochemical methods of detection. The search for accurate and field-practical methods for identifying intoxication amongst participants is useful, but not the only strategy for researchers who want to ensure the validity of the consent process. Suggestions are provided for devising research protocols that acknowledge and accept intoxication of research participants and attempt to protect them. One solution is to side-step identification of intoxication per se as a strategic objective in the consent process, and turn instead to established methods for ensuring that information has been understood by potential research participants.


Assuntos
Intoxicação Alcoólica/psicologia , Pesquisa Biomédica/ética , Consentimento Livre e Esclarecido , Transtornos Relacionados ao Uso de Substâncias/psicologia , Intoxicação Alcoólica/diagnóstico , Intoxicação Alcoólica/reabilitação , Humanos , Sujeitos da Pesquisa , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/reabilitação
4.
Addiction ; 113(5): 789-796, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-28766792

RESUMO

BACKGROUND AND AIM: Cryptomarkets-on-line, anonymous market-places for illicit goods and services that specialize mainly in drugs-account for a small but rapidly growing share of the illicit drug market in many countries. Policy responses so far are based generally on the assumption that their rise will only increase drug harms. In this contribution for debate, we question this assumption. METHODS: We provide a narrative review of the emerging literature connected to drug cryptomarkets. We use MacCoun & Reuter's formula to understand the effect of population-level increases in use on total harm as depending on the level of harm associated with each unit of use. We then consider the potential for cryptomarkets to increase or decrease the harms and benefits related to each unit of drug use, with specific attention to the quality of drugs sold and the non-drug-related harms and benefits for customers. RESULTS: It is likely that cryptomarkets will increase both the amount and the range of substances that are sold. However, we argue that the effects on harms will depend upon whether cryptomarkets also increase the quality and safety of products that are sold, provide harm-reducing information to consumers and reduce transactional conflict involved in drug purchasing. CONCLUSIONS: There is an emerging and rapidly growing evidence base connected to the macro and micro harms and benefits of cryptomarkets for drug users. Future researchers should use appropriately matched comparative designs to establish more firmly the differential harms and benefits of sourcing drugs both on- and off-line. While it is unlikely that the on-line drug trade can be eradicated completely, cryptomarkets will respond to regulation and enforcement in ways that have complex, and sometimes unanticipated, effects on both harms and benefits.


Assuntos
Tráfico de Drogas , Internet , Comportamento do Consumidor , Redução do Dano , Humanos , Drogas Ilícitas , Transtornos Relacionados ao Uso de Substâncias
5.
BMJ ; 361: k2270, 2018 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-29899119

RESUMO

OBJECTIVE: To examine the effect on the trade in opioids through online illicit markets ("cryptomarkets") of the US Drug Enforcement Administration's ruling in 2014 to reschedule hydrocodone combination products. DESIGN: Interrupted time series analysis. SETTING: 31 of the world's largest cryptomarkets operating from October 2013 to July 2016. MAIN OUTCOME MEASURES: The proportion of total transactions, advertised and active listings for prescription opioids, prescription sedatives, prescription steroids, prescription stimulants, and illicit opioids, and the composition of the prescription opioid market between the US and elsewhere. RESULTS: The sale of prescription opioids through US cryptomarkets increased after the schedule change, with no statistically significant changes in sales of prescription sedatives, prescription steroids, prescription stimulants, or illicit opioids. In July 2016 sales of opioids through US cryptomarkets represented 13.7% of all drug sales (95% confidence interval 11.5% to 16.0%) compared with a modelled estimate of 6.7% of all sales (3.7% to 9.6%) had the new schedule not been introduced. This corresponds to a 4 percentage point yearly increase in the amount of trade that prescription opioids represent in the US market, set against no corresponding changes for comparable products or for prescription opioids sold outside the US. This change was first observed for sales, and later observed for product availability. There was also a change in the composition of the prescription opioid market: fentanyl was the least purchased product during July to September 2014, then the second most frequently purchased by July 2016. CONCLUSIONS: The scheduling change in hydrocodone combination products coincided with a statistically significant, sustained increase in illicit trading of opioids through online US cryptomarkets. These changes were not observed for other drug groups or in other countries. A subsequent move was observed towards the purchase of more potent forms of prescription opioids, particularly oxycodone and fentanyl.


Assuntos
Analgésicos Opioides/provisão & distribuição , Tráfico de Drogas/prevenção & controle , Medicamentos sob Prescrição/provisão & distribuição , Transtornos Relacionados ao Uso de Substâncias/prevenção & controle , Analgésicos Opioides/uso terapêutico , Controle de Medicamentos e Entorpecentes/métodos , Humanos , Hidrocodona/provisão & distribuição , Hidrocodona/uso terapêutico , Análise de Séries Temporais Interrompida , Medicamentos sob Prescrição/uso terapêutico , Estados Unidos
6.
Int J Drug Policy ; 41: 101-109, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28089207

RESUMO

BACKGROUND: Cryptomarkets represent an important drug market innovation by bringing buyers and sellers of illegal drugs together in a 'hidden' yet public online marketplace. We ask: How do cryptomarket drug sellers and buyers perceive the risks of detection and arrest, and attempt to limit them? METHODS: We analyse selected texts produced by vendors operating on the first major drug cryptomarket, Silk Road (N=600) alongside data extracted from the marketplace discussion forum that include buyer perspectives. We apply Fader's (2016) framework for understanding how drug dealers operating 'offline' attempt to reduce the risk of detection and arrest: visibility reduction, charge reduction and risk distribution. RESULTS: We characterize drug transactions on cryptomarkets as 'stretched' across time, virtual and physical space, and handlers, changing the location and nature of risks faced by cryptomarket users. The key locations of risk of detection and arrest by law enforcement were found in 'offline' activities of cryptomarket vendors (packaging and delivery drop-offs) and buyers (receiving deliveries). Strategies in response involved either creating or disrupting routine activities in line with a non-offending identity. Use of encrypted communication was seen as 'good practice' but often not employed. 'Drop shipping' allowed some Silk Road vendors to sell illegal drugs without the necessity of handling them. CONCLUSION: Silk Road participants neither viewed themselves as immune to, nor passively accepting of, the risk of detection and arrest. Rational choice theorists have viewed offending decisions as constrained by limited access to relevant information. Cryptomarkets as 'illicit capital' sharing communities provide expanded and low-cost access to information enabling drug market participants to make more accurate assessments of the risk of apprehension. The abundance of drug market intelligence available to those on both sides of the law may function to speed up innovation in illegal drug markets, as well as necessitate and facilitate the development of law enforcement responses.


Assuntos
Comércio/estatística & dados numéricos , Tráfico de Drogas/estatística & dados numéricos , Drogas Ilícitas/provisão & distribuição , Aplicação da Lei , Comércio/economia , Comércio/legislação & jurisprudência , Tráfico de Drogas/economia , Humanos , Drogas Ilícitas/economia , Internet , Risco
7.
Int J Drug Policy ; 50: 64-73, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-29055855

RESUMO

BACKGROUND: Australia has a reputation as an anomaly with regard to cryptomarket drug trading, with seemingly disproportionately high levels of activity given its relatively small size, high prices and anecdotal accounts of it being a destination where many foreign-based vendors will not sell. This paper aims to investigate these claims from a risk and prices perspective. METHODS: By analysing data for over 60,000 drug products available for purchase from eight cryptomarkets in January 2016 this work builds a descriptive picture of the Australian online market in comparison to the rest of the world, before moving onto analyse the prices of drugs available to Australian consumers, both online and though conventional drug supply routes. RESULTS: Results show that the Australian online illicit drugs market is of considerable size, internally isolated and with methamphetamine sales being particularly large by comparison to other countries. Australian cryptomarket vendors sell drugs at significantly higher prices than those listed by their foreign counterparts. Online prices are however broadly comparable to street prices, with the exception of methamphetamine where prices appear to be much lower online. CONCLUSIONS: These findings indicate that the perceived stringency of Australian border protection inadvertently increases the competitiveness and local market share of domestic cryptomarket vendors via a consumer side 'risk tariff', challenging the traditionally vendor-oriented drugs risk and prices framework.


Assuntos
Comércio , Tráfico de Drogas/economia , Drogas Ilícitas/economia , Internet/economia , Humanos , Internacionalidade , Risco
8.
Int J Drug Policy ; 35: 7-15, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27260863

RESUMO

BACKGROUND: In spite of globalizing processes 'offline' retail drug markets remain localized and - in recent decades - typically 'closed', in which dealers sell primarily to known customers. We characterize drug cryptomarkets as 'anonymous open' marketplaces that allow the diffusion of drugs across locales. Where cryptomarket customers make stock-sourcing purchases for offline distribution, the cryptomarket may indirectly serve drug users who are not themselves cryptomarket customers, thereby increasing the drug diffusing capacity of these marketplaces. Our research aimed to identify wholesale activity on the first major cryptomarket, Silk Road 1. METHODS: Data were collected 13-15 September 2013. A bespoke web crawler downloaded content from the first major drug cryptomarket, Silk Road 1. This generated data on 1031 vendors and 10,927 drug listings. We estimated monthly revenues to ascertain the relative importance of wholesale priced listings. RESULTS: Wholesale-level revenue generation (sales for listings priced over USD $1000.00) accounted for about a quarter of the revenue generation on SR1 overall. Ecstasy-type drugs dominated wholesale activity on this marketplace, but we also identified substantial wholesale transactions for benzodiazepines and prescription stimulants. Less important, but still generating wholesale revenue, were cocaine, methamphetamine and heroin. Although vendors on the marketplace were located in 41 countries, wholesale activity was confined to only a quarter of these, with China, the Netherlands, Canada and Belgium prominent. CONCLUSIONS: The cryptomarket may function in part as a virtual broker, linking wholesalers with offline retail-level distributors. For drugs like ecstasy, these marketplaces may link vendors in producer countries directly with retail level suppliers. Wholesale activity on cryptomarkets may serve to increase the diffusion of new drugs - and wider range of drugs - in offline drug markets, thereby indirectly serving drug users who are not cryptomarket customers themselves. Cryptomarkets provide researchers and policy makers with a rich source of drug monitoring information. Further research should ascertain whether their virtual location may reduce the violence associated with middle market drug activity. We caution that conflict may instead manifest in other ways, including threats, fraud, and blackmail.


Assuntos
Comércio/estatística & dados numéricos , Tráfico de Drogas/economia , Drogas Ilícitas/provisão & distribuição , Internet , Comércio/economia , Usuários de Drogas , Humanos , Drogas Ilícitas/economia , Transtornos Relacionados ao Uso de Substâncias
9.
Int J Drug Policy ; 35: 69-76, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27453145

RESUMO

BACKGROUND: Since 2011, we have witnessed the rise of 'dark net' drug marketplaces known as cryptomarkets. Cryptomarkets operate on the same model as eBay as they provide a platform where authorized vendors can set up a virtual shop and place listings. Building on a growing body of literature that seeks to understand cryptomarket participants, this paper seeks to explain the decision of cryptomarket vendors to take on risk. METHODS: We collected data on Silk Road 1 (SR1), the first cryptomarket launched in 2011. We propose a multilevel model that takes into account the characteristics of listings, vendors and their environment to explain the decision of vendors to take on risk. RESULTS: Our results demonstrate that all levels in the model significantly explain the decision to take on risk. Risk taking, operationalized as a willingness to ship drugs across international borders, was associated with the weights of drug packages mailed, the vendors' reputations and numbers of listings, the country-level perceived effectiveness of law enforcement according to experts, and the opportunities available to vendors as measured by the wealth and the drug expenditures of potential customers. CONCLUSIONS: Our results support some previous research findings on the factors explaining risk taking. We extend existing literature by emphasizing the relevance of the environment of drug dealers to predict risk taking.


Assuntos
Comércio/organização & administração , Tráfico de Drogas/economia , Drogas Ilícitas/provisão & distribuição , Internet , Comércio/economia , Tomada de Decisões , Humanos , Drogas Ilícitas/economia , Internacionalidade , Aplicação da Lei , Modelos Organizacionais , Assunção de Riscos
11.
J Pain Symptom Manage ; 24(4): 398-403, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12505208

RESUMO

The introduction of fentanyl transdermal patches has led to concern and confusion regarding the management of pain control in the dying phase. Data were collected retrospectively from 94 dying patients. Two groups were identified-patients treated with fentanyl transdermal patch who remained on the patch in the dying phase and patients on oral morphine who converted to a 24-hour subcutaneous infusion of diamorphine via a syringe driver in the dying phase. Both the fentanyl group and the diamorphine group had good pain control in the last 48 hours of life. During the last 48 hours of life, the proportion of patients with controlled pain was statistically significant in favor of the fentanyl group in 2 of the 12 observations undertaken, in particular whether the fentanyl transdermal patch should be continued or discontinued. Patients in the fentanyl group received fewer "as required" opioid doses compared to patients in the diamorphine group, although the difference was statistically significant only for the last day of life. This study showed that pain control was not compromised in the dying phase with continued use of the fentanyl patch.


Assuntos
Analgésicos Opioides/administração & dosagem , Fentanila/administração & dosagem , Cuidados Paliativos/normas , Assistência Terminal , Administração Cutânea , Administração Oral , Adulto , Idoso , Idoso de 80 Anos ou mais , Analgésicos Opioides/uso terapêutico , Esquema de Medicação , Fentanila/uso terapêutico , Heroína/administração & dosagem , Heroína/uso terapêutico , Humanos , Bombas de Infusão , Pessoa de Meia-Idade , Estudos Retrospectivos
14.
Violence Against Women ; 18(6): 653-61, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22926187

RESUMO

This article uses data from a 3-year multisite ethnographic research study of gangs within an English city, to explore the different ways that "gang culture" shapes the victimization experiences and everyday lives of (young) women. Victims of lethal gang violence in Research City are almost exclusively young men, rendering invisible the ways in which gangs have an impact on the lives of women living in neighborhoods with a gang presence. The article also discusses how the adoption of a transdisciplinary approach could be useful in developing a holistic picture of the impact of gang-related violence on the lives of women.


Assuntos
Bullying , Vítimas de Crime , Processos Grupais , Problemas Sociais , Violência , Mulheres , Adolescente , Inglaterra , Feminino , Armas de Fogo , Homicídio , Humanos , Masculino , Distância Psicológica , Características de Residência , Adulto Jovem
16.
Int J Drug Policy ; 22(6): 420-7, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21782407

RESUMO

Through a consideration of quantitative and qualitative data obtained from young women aged 18-28 in the later years of the North West England Longitudinal Study, this paper explores how women's drug careers develop, progressing the authors' normalisation thesis of 'recreational' drug use from adolescence into adulthood. Longitudinal studies are here compared with repeated cross-sectional surveys more usually favoured and funded by governments. The authors argue that firstly, in relation to methodology, longitudinal studies provide a unique opportunity to elucidate how drug careers develop across the life course and to chart the various impacts of life events and transitions on these careers and vice versa. Secondly, through this exploration of gender differences in drug careers and life transitions, we develop an age and gender-sensitive understanding of how recreational drug use fits into women's adult lives. The paper concludes that the challenge for policy makers is how to address adult women's 'normalised' recreational drug use, in the face of a regime focused on educational provision aimed at adolescent prevention; public health information designed for teenagers; and treatment resources focused on predominantly male and non parenting problem drug users, and the links between addiction and acquisitive crime.


Assuntos
Crime/estatística & dados numéricos , Usuários de Drogas/estatística & dados numéricos , Drogas Ilícitas , Vida Independente , Casamento , Mães/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Saúde da Mulher/estatística & dados numéricos , Adolescente , Adulto , Fatores Etários , Crime/prevenção & controle , Crime/psicologia , Estudos Transversais , Usuários de Drogas/legislação & jurisprudência , Usuários de Drogas/psicologia , Controle de Medicamentos e Entorpecentes/legislação & jurisprudência , Inglaterra/epidemiologia , Feminino , Regulamentação Governamental , Política de Saúde/legislação & jurisprudência , Humanos , Renda , Acontecimentos que Mudam a Vida , Estudos Longitudinais , Masculino , Mães/legislação & jurisprudência , Mães/psicologia , Gravidez , Fatores Sexuais , Comportamento Social , Transtornos Relacionados ao Uso de Substâncias/prevenção & controle , Transtornos Relacionados ao Uso de Substâncias/psicologia , Transtornos Relacionados ao Uso de Substâncias/reabilitação , Fatores de Tempo , Adulto Jovem
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