Dataset Information

Motivations for crystal methamphetamine-opioid co-injection/co-use amongst community-recruited people who inject drugs: a qualitative study.

ABSTRACT: AIMS:We report on motivations for crystal methamphetamine-opioid co-use/co-injection through narratives of people who inject drugs during a period of increased crystal methamphetamine use reporting in Australia. METHODS:Fourteen in-depth interviews were undertaken with selected participants (12 male, 2 female) from the Melbourne Injecting Drug User Cohort Study, including those in and out of opioid substitution therapy (OST). RESULTS:The main motivations for co-use reported by participants were as follows: (1) that heroin could be used to reduce the negative side effects of heavy crystal methamphetamine use, particularly during the 'comedown' phase; (2) that small quantities of crystal methamphetamine used with heroin could prolong the intoxication effect of heroin, and hence the time before opioid withdrawal; (3) that co-injection of crystal methamphetamine and heroin produced a more desirable intoxication effect than using either substance on its own and; (4) that crystal methamphetamine provided a substitute 'high' for heroin after commencing OST treatment. CONCLUSIONS:Co-use of methamphetamine and opioids has been used by people who inject drugs to facilitate intoxication, sometimes as the result of ineffective opioid substitution therapy (OST) treatment and perceived lack of pleasure after stabilisation on OST treatment.

SUBMITTER: Palmer A

PROVIDER: S-EPMC7047412 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Motivations for crystal methamphetamine-opioid co-injection/co-use amongst community-recruited people who inject drugs: a qualitative study.

Palmer Anna A Scott Nick N Dietze Paul P Higgs Peter P

Harm reduction journal 20200227 1

<h4>Aims</h4>We report on motivations for crystal methamphetamine-opioid co-use/co-injection through narratives of people who inject drugs during a period of increased crystal methamphetamine use reporting in Australia.<h4>Methods</h4>Fourteen in-depth interviews were undertaken with selected participants (12 male, 2 female) from the Melbourne Injecting Drug User Cohort Study, including those in and out of opioid substitution therapy (OST).<h4>Results</h4>The main motivations for co-use reported ...[more]

PMID: 32106854

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Project description:BackgroundPolysubstance use (i.e., using ≥2 psychoactive substances concomitantly) is associated with increased morbidity and mortality and complicates drug treatment needs among people who inject drugs (PWID). We explored patterns, contexts, motivations, and perceived consequences of polysubstance use among PWID in small cities and towns in the U.S. Northeast.MethodsBetween October 2018 and March 2019, we conducted semi-structured interviews with 45 PWID living outside of the capital cities of Rhode Island and Massachusetts recruited online and through community-based organizations. Written transcripts were coded inductively and deductively using a team-based approach and analyzed thematically.ResultsAll participants reported recent polysubstance use, with most using five or more classes of substances in the past three months. Polysubstance use often followed long personal drug use histories (i.e., years or decades of occasional drug use). Reasons for polysubstance use included obtaining synergistic psychoactive effects as a result of mixing drugs (i.e., using drugs to potentiate effects of other drugs) and managing undesirable effects of particular drugs (e.g., offsetting the depressant effects of opioids with stimulants or vice-versa). Polysubstance use to self-medicate poorly managed physical and mental health conditions (e.g., chronic pain, anxiety, and depression) was also reported. Inadequately managed cravings and withdrawal symptoms prompted concomitant use of heroin and medications for opioid use disorder, including among individuals reporting cocaine or crack as their primary "issue" drugs. Polysubstance use was perceived to increase overdose risks and to be a barrier to accessing healthcare and drug treatment services.ConclusionHealthcare services and clinicians should acknowledge, assess, and account for polysubstance use among patients and promote harm reduction approaches for individuals who may be using multiple drugs. Comprehensive healthcare that meets the social, physical, mental health, and drug treatment needs of PWID may decrease the perceived need for polysubstance use to self-medicate poorly managed health conditions and symptoms.

Project description:BackgroundPeople who inject drugs (PWID) experience high incarceration rates, with current/recent incarceration being associated with increased hepatitis C virus (HCV) transmission. We assess the contribution of incarceration to HCV transmission amongst PWID in Perry County (PC), Kentucky, USA, and the impact of scaling-up community and in-prison opioid substitution therapy (OST), including the potential for reducing incarceration.MethodsA dynamic model of incarceration and HCV transmission amongst PWID was calibrated in a Bayesian framework to epidemiological and incarceration data from PC, incorporating an empirically estimated 2.8-fold (95%CI: 1.36-5.77) elevated HCV acquisition risk amongst currently incarcerated or recently released (<6 months) PWID compared to other PWID. We projected the percentage of new HCV infections that would be prevented among PWID over 2020-2030 if incarceration no longer elevated HCV transmission risk, if needle and syringe programmes (NSP) and OST are scaled-up, and/or if drug use was decriminalized (incarceration/reincarceration rates are halved) with 50% of PWID that would have been imprisoned being diverted onto OST. We assume OST reduces reincarceration by 10-42%.ResultsOver 2020-2030, removing the effect of incarceration on HCV transmission could prevent 42.7% (95% credibility interval: 15.0-67.4%) of new HCV infections amongst PWID. Conversely, scaling-up community OST and NSP to 50% coverage could prevent 28.5% (20.0-37.4%) of new infections, with this increasing to 32.7% (24.5-41.2%) if PWID are retained on OST upon incarceration, 36.4% (27.7-44.9%) if PWID initiate OST in prison, and 45.3% (35.9-54.1%) if PWID are retained on OST upon release. decriminalization (with diversion to OST) could further increase this impact, preventing 56.8% (45.3-64.5%) of new infections. The impact of these OST interventions decreases by 2.1-28.6% if OST does not reduce incarceration.ConclusionIncarceration is likely to be an important contributor to HCV transmission amongst PWID in PC. Prison-based OST could be an important intervention for reducing this risk.

Dataset Information

Motivations for crystal methamphetamine-opioid co-injection/co-use amongst community-recruited people who inject drugs: a qualitative study.

Publications

Motivations for crystal methamphetamine-opioid co-injection/co-use amongst community-recruited people who inject drugs: a qualitative study.

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