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1.
Int J Drug Policy ; 27: 74-81, 2016 Jan.
Article in English | MEDLINE | ID: mdl-26547299

ABSTRACT

BACKGROUND: Direct evidence of the effect of drug seizures on drug use and drug-related harm is fairly sparse. The aim of this study was to see whether seizures of heroin, cocaine and ATS predict the number of people arrested for use and possession of these drugs and the number overdosing on them. METHOD: We examined the effect of seizure frequency and seizure weight on arrests for drug use and possession and on the frequency of drug overdose with autoregressive distributed lag (ARDL) models. Granger causality tests were used to test for simultaneity. RESULTS: Over the short term (i.e. up to 4 months), increases in the intensity of high-level drug law enforcement (as measured by seizure weight and frequency) directed at ATS, cocaine and heroin did not appear to have any suppression effect on emergency department (ED) presentations relating to ATS, cocaine and heroin, or on arrests for use and/or possession of these drugs. A significant negative contemporaneous relationship was found between the heroin seizure weight and arrests for use and/or possession of heroin. However no evidence emerged of a contemporaneous or lagged relationship between heroin seizures and heroin ED presentations. CONCLUSION: The balance of evidence suggests that, in the Australian context, increases in the monthly seizure frequency and quantity of ATS, cocaine and heroin are signals of increased rather than reduced supply.


Subject(s)
Drug Overdose/epidemiology , Emergency Service, Hospital/statistics & numerical data , Law Enforcement , Substance-Related Disorders/epidemiology , Amphetamines/adverse effects , Amphetamines/supply & distribution , Australia/epidemiology , Cocaine/adverse effects , Cocaine/supply & distribution , Crime/statistics & numerical data , Heroin/adverse effects , Heroin/supply & distribution , Humans , Illicit Drugs/adverse effects , Illicit Drugs/supply & distribution , Models, Statistical
2.
Addiction ; 110(7): 1138-43, 2015 Jul.
Article in English | MEDLINE | ID: mdl-25808511

ABSTRACT

AIMS: To investigate the temporal pattern of appearance of a new psychoactive substance (4-fluoroamphetamine) on the Dutch drug market, as well as its patterns of use and effects. DESIGN: Data from the Drug Information and Monitoring System (DIMS) was used to investigate the emergence of 4-fluoroamphetamine on the Dutch drug market. An on-line questionnaire was used to study its patterns of use and effects. SETTING: Dutch drug-related websites and social media. PARTICIPANTS: A convenience sample of 249 life-time 4-fluoroamphetamine users was recruited through the internet. MEASUREMENTS: Samples containing 4-fluoroamphetamine were extracted from the DIMS database for further investigation. Patterns of use, settings of use and the subjective effects of 4-fluoroamphetamine, amphetamine and 3,4-methylenedioxymethamphetamine (MDMA) were investigated with the on-line questionnaire. FINDINGS: 4-Fluoroamphetamine was first encountered on the Dutch drug market, sold mainly as amphetamine or ecstasy (MDMA), between 2007 and 2009. These misrepresented drug samples declined when the MDMA and amphetamine markets recovered after a period of shortage, whereas purposefully bought 4-fluoroamphetamine samples showed an increase. Survey results showed that 4-fluoroamphetamine is used predominantly [77.1%, 95% confidence interval (CI) = 72.0-82.3] for its specific effects, rather than its legal status (17.7%, 95% CI = 10.7-22.1). The subjective effects of 4-fluoroamphetamine were compared with those of amphetamine and MDMA. Subjective effect scores of 4-fluoroamphetamine ranged between those of amphetamine and MDMA. CONCLUSIONS: The stimulant 4-fluoroamphetamine is increasingly popular in the Netherlands, which might be due to its subjective effects profile, which lies intermediate between amphetamine and MDMA.


Subject(s)
Amphetamine-Related Disorders/epidemiology , Amphetamines/supply & distribution , Drug Users/psychology , Illicit Drugs/supply & distribution , N-Methyl-3,4-methylenedioxyamphetamine/supply & distribution , Psychotropic Drugs/supply & distribution , Adolescent , Adult , Amphetamines/adverse effects , Female , Humans , Illicit Drugs/adverse effects , Male , N-Methyl-3,4-methylenedioxyamphetamine/adverse effects , Netherlands , Psychotropic Drugs/adverse effects , Social Media , Surveys and Questionnaires , Young Adult
3.
Soc Sci Med ; 131: 297-304, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25455480

ABSTRACT

This article investigates everyday experiences and practises that are associated with processes of pharmaceuticalization and with practices of 'drug diversion'--that is, the illicit exchange and non-medical use of prescription drugs. It reports results from a qualitative study that was designed to examine the everyday dimensions of non-medical prescription stimulant use among students on an American university campus, which involved 38 semi-structured interviews with individuals who used prescription stimulants as a means of improving academic performance. While discussions of drug diversion are often framed in terms of broad, population-level patterns and demographic trends, the present analysis provides a complementary sociocultural perspective that is attuned to the local and everyday phenomena. Results are reported in relation to the acquisition of supplies of medications intended for nonmedical use. An analysis is provided which identifies four different sources of diverted medications (friends; family members; black-market vendors; deceived clinicians), and describes particular sets of understandings, practices and experiences that arise in relation to each different source. Findings suggest that at the level of everyday experience and practice, the phenomenon of prescription stimulant diversion is characterised by a significant degree of complexity and heterogeneity.


Subject(s)
Central Nervous System Stimulants , Prescription Drug Diversion/legislation & jurisprudence , Prescription Drugs , Students/statistics & numerical data , Substance-Related Disorders/epidemiology , Adolescent , Amphetamines/supply & distribution , Central Nervous System Stimulants/supply & distribution , Deception , Drug Trafficking/legislation & jurisprudence , Drug Trafficking/psychology , Female , Humans , Interview, Psychological , Male , Methylphenidate/supply & distribution , Prescription Drug Diversion/psychology , Prescription Drug Overuse/legislation & jurisprudence , Prescription Drug Overuse/psychology , Prescription Drugs/supply & distribution , Qualitative Research , Students/legislation & jurisprudence , Students/psychology , Substance-Related Disorders/psychology , Young Adult
6.
J Gen Intern Med ; 24(3): 430-3, 2009 Mar.
Article in English | MEDLINE | ID: mdl-19096898

ABSTRACT

Banned amphetamine-based anorectics are illicitly imported into the United States (US), but little is known regarding the harm these diet pills pose to US residents. A 26-year-old woman using imported diet pills presented with a two-year history of intermittent chest pains, palpitations, headaches and insomnia. Urine toxicology screen detected amphetamines and benzodiazepines. Fenproporex and chlordiazepoxide were detected in her pills. Her symptoms resolved after she stopped using diet pills. A 38-year-old man using imported diet pills presented after his occupational urine screen was significantly positive for amphetamine. Fenproporex and fluoxetine were detected in his pills. These cases illustrate the potential harm from imported prescription diet pills that combine fenproporex with benzodiazepines, antidepressants, diuretics, laxatives and other substances. Increasing physicians' awareness of imported diet pill use may improve care of patients suffering from the pills' many adverse effects.


Subject(s)
Amphetamines/adverse effects , Appetite Depressants/adverse effects , Substance Abuse Detection , Substance-Related Disorders/etiology , Adult , Amphetamines/supply & distribution , Appetite Depressants/supply & distribution , Brazil , Chest Pain/chemically induced , Drug and Narcotic Control , Female , Humans , Male , Sleep Initiation and Maintenance Disorders/chemically induced , Substance-Related Disorders/diagnosis , Tachycardia/chemically induced , United States
7.
Br J Psychiatry ; 191: 279-81, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17906235

ABSTRACT

Amphetamine-type stimulants are the second most widely used drugs in the world. Overprescription results in diversion for recreational use and the development of dependence. The internet plays a significant role in global misuse of amphetamine-type stimulants, permitting uncontrolled dispensing by online pharmacies and providing information on techniques for illicit manufacture.


Subject(s)
Amphetamine-Related Disorders/epidemiology , Amphetamines/supply & distribution , Central Nervous System Stimulants/supply & distribution , Drug and Narcotic Control/legislation & jurisprudence , Adolescent , Adult , Aged , Aged, 80 and over , Child , Drug Prescriptions/statistics & numerical data , Global Health , Humans , Internet , Middle Aged , Pharmacies/legislation & jurisprudence
8.
Addiction ; 102(5): 740-51, 2007 May.
Article in English | MEDLINE | ID: mdl-17506151

ABSTRACT

AIMS: To describe the connections among the likelihood of attention deficit/hyperactivity disorder (ADHD), medical and non-medical methylphenidate and amphetamine use and the diversion of prescribed methylphenidate in the general adolescent population. DESIGN: Cross-sectional self-reported anonymous data from the 2002 Student Drug Use Survey in the Atlantic Provinces. SETTING: The Atlantic provinces of Canada. PARTICIPANTS: A total of 12,990 students participated. MEASUREMENTS: The outcomes were a positive ADHD screening test, medical and non-medical use of methylphenidate, medical and non-medical use of amphetamine and the giving and selling of methylphenidate medication by students with a prescription. The Ontario Child Health Study Hyperactivity Scale was used to screen for ADHD. FINDINGS: The prevalence of a positive ADHD screening test was 6% with no significant gender difference. The prevalence of medical and non-medical methylphenidate use and medical and non-medical amphetamine use was 2.0%, 6.6%, 1.2% and 8.7%, respectively. A positive ADHD screening test was independently predictive of these four patterns of use. About 26% of students with prescribed methylphenidate gave or sold some of their medication. Students in a class where at least one student had given or sold some of their prescribed pills had a 1.52-fold increased risk of non-medical methylphenidate use than their counterparts in classes where no giving or selling had taken place. CONCLUSIONS: Connections were demonstrated at the population level between ADHD, medical methylphenidate use, the diversion of prescribed methylphenidate and the non-medical use of methylphenidate. The appropriate assessment and management of ADHD are essential to minimize both the risk of diversion and of substance use associated with unrecognized or untreated ADHD.


Subject(s)
Amphetamines/supply & distribution , Attention Deficit Disorder with Hyperactivity/epidemiology , Central Nervous System Stimulants/supply & distribution , Methylphenidate/supply & distribution , Substance-Related Disorders/epidemiology , Adolescent , Amphetamines/therapeutic use , Attention Deficit Disorder with Hyperactivity/drug therapy , Canada/epidemiology , Child , Drug Prescriptions , Female , Humans , Male , Methylphenidate/therapeutic use , Risk Factors
9.
BMJ ; 310(6971): 20-4, 1995 Jan 07.
Article in English | MEDLINE | ID: mdl-7755714

ABSTRACT

OBJECTIVE: To monitor young people's knowledge and experience of illicit drugs between 1969 and 1994 at intervals of five years. DESIGN: The same anonymously completed questionnaire was used throughout. SETTING: Three Wolverhampton secondary schools representing three different socioeconomic groups. SUBJECTS: 392 pupils aged 14 to 15 completed the questionnaire in 1994. Previous sample sizes were 471 in 1969, 523 in 1974, 648 in 1979, 540 in 1984, and 380 in 1989. MAIN OUTCOME MEASURES: Self reported levels of knowledge and experience of illicit drugs. RESULTS: Over 25 years the proportion of pupils who knew someone taking drugs more than quadrupled from 15% (71/471) to 65% (254/392), and the proportion who had been offered drugs increased ninefold from 5% (24) to 45% (175). Both of these proportions more than doubled over the past five years. In 1994 the proportions of pupils mentioning "ecstasy" (methylenedioxymethamphetamine), amphetamines, and crack cocaine increased significantly (P < 0.01) and the proportion mentioning opiates decreased significantly (P < 0.01). "Poppers" (amyl nitrite) were mentioned for the first time. "To feel big, to show off, look grown up" has continued to be the main perceived reason for taking drugs. Television has continued to be the main source of information. CONCLUSIONS: In the past five years in particular young people's exposure to illicit drugs has increased dramatically. Despite more education about drugs, pupil's knowledge remains limited. Social pressures remain the first perceived reason for taking drugs. The media have a responsibility not to glamorise drugs.


Subject(s)
Health Knowledge, Attitudes, Practice , Illicit Drugs/supply & distribution , Substance-Related Disorders/psychology , Adolescent , Amphetamines/supply & distribution , Designer Drugs/supply & distribution , England/epidemiology , Female , Health Education , Humans , Illicit Drugs/adverse effects , Lysergic Acid Diethylamide/supply & distribution , Male , Marijuana Smoking/trends , Narcotics/supply & distribution , Solvents/supply & distribution , Substance-Related Disorders/complications , Substance-Related Disorders/epidemiology
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