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1.
Addiction ; 112(4): 640-648, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27936283

RESUMO

BACKGROUND AND AIMS: On-line drug markets flourish and consumers have high expectations of on-line quality and drug value. The aim of this study was to (i) describe on-line drug purchases and (ii) compare on-line with off-line purchased drugs regarding purity, adulteration and price. DESIGN: Comparison of laboratory analyses of 32 663 drug consumer samples (stimulants and hallucinogens) purchased between January 2013 and January 2016, 928 of which were bought on-line. SETTING: The Netherlands. MEASUREMENTS: Primary outcome measures were (i) the percentage of samples purchased on-line and (ii) the chemical purity of powders (or dosage per tablet); adulteration; and the price per gram, blotter or tablet of drugs bought on-line compared with drugs bought off-line. FINDINGS: The proportion of drug samples purchased on-line increased from 1.4% in 2013 to 4.1% in 2015. The frequency varied widely, from a maximum of 6% for controlled, traditional substances [ecstasy tablets, 3,4-methylenedioxy-methamphetamine (MDMA) powder, amphetamine powder, cocaine powder, 4-bromo-2,5-dimethoxyphenethylamine (2C-B) and lysergic acid diethylamide (LSD)] to more than a third for new psychoactive substances (NPS) [4-fluoroamphetamine (4-FA), 5/6-(2-aminopropyl)benzofuran (5/6-APB) and methoxetamine (MXE)]. There were no large differences in drug purity, yet small but statistically significant differences were found for 4-FA (on-line 59% versus off-line 52% purity for 4-FA on average, P = 0.001), MDMA powders (45 versus 61% purity for MDMA, P = 0.02), 2C-B tablets (21 versus 10 mg 2C-B/tablet dosage, P = 0.49) and ecstasy tablets (131 versus 121 mg MDMA/tablet dosage, P = 0.05). The proportion of adulterated samples purchased on-line and off-line did not differ, except for 4-FA powder, being less adulterated on-line (χ2  = 8.3; P < 0.02). Drug prices were mainly higher on-line, ranging for various drugs from 10 to 23% higher than that of drugs purchased off-line (six of 10 substances: P < 0.05). CONCLUSIONS: Dutch drug users increasingly purchase drugs on-line: new psychoactive substances in particular. Purity and adulteration do not vary considerably between drugs purchased on-line and off-line for most substances, while on-line prices are mostly higher than off-line prices.


Assuntos
Estimulantes do Sistema Nervoso Central/química , Contaminação de Medicamentos , Custos de Medicamentos , Alucinógenos/química , Drogas Ilícitas/química , Internet , Anfetamina/química , Anfetamina/economia , Anfetaminas/química , Anfetaminas/economia , Benzofuranos/química , Benzofuranos/economia , Estimulantes do Sistema Nervoso Central/economia , Cocaína/química , Cocaína/economia , Cicloexanonas/química , Cicloexanonas/economia , Cicloexilaminas/química , Cicloexilaminas/economia , Dimetoxifeniletilamina/análogos & derivados , Dimetoxifeniletilamina/química , Dimetoxifeniletilamina/economia , Tráfico de Drogas , Alucinógenos/economia , Humanos , Drogas Ilícitas/economia , Dietilamida do Ácido Lisérgico/química , Dietilamida do Ácido Lisérgico/economia , N-Metil-3,4-Metilenodioxianfetamina/química , N-Metil-3,4-Metilenodioxianfetamina/economia , Países Baixos , Propilaminas/química , Propilaminas/economia
2.
Hum Psychopharmacol ; 32(3)2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-27766667

RESUMO

BACKGROUND: Fenetheylline, a psychostimulant drug, often branded as Captagon, is a combination of amphetamine and theophylline. Since the cessation of its legal production in 1986, counterfeited products have been produced illicitly in south-east Europe and far-east Asia. Its profitable trade has been linked to terrorist organizations, including Islamic State of Iraq and the Levant. This study aims to reach up-to-date data, concerning the Captagon e-commerce and use in the Middle East. METHODS: A multi-staged and multi-lingual literature search was carried out. A list of prespecified keywords was applied across medical and paramedical databases, web and Dark web, search engines, social communication media, electronic commerce websites, media networks, and the Global Public Health Intelligence Network database. RESULTS: The use of Captagon as a stimulant in terrorist settings has been marginally covered in the literature. Data can widely be retrieved from Google and AOL search engines, YouTube, and Amazon e-commerce websites, and to a lesser extent from Alibaba and eBay. On the contrary, Middle Eastern e-commerce websites yielded almost no results. Interestingly, the Dark web generated original data for Captagon e-commerce in the Middle East. CONCLUSION: Further investigations are needed on the role that psychoactive drugs play in terrorist attacks and civil war zones. Unless a comprehensive methodological strategy, inclusive of unconventional methods of research, is implemented, it will not be feasible to face such a threat to humanity.


Assuntos
Anfetaminas/efeitos adversos , Estimulantes do Sistema Nervoso Central/efeitos adversos , Comércio/tendências , Medicamentos Falsificados/efeitos adversos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Teofilina/análogos & derivados , Anfetaminas/economia , Estimulantes do Sistema Nervoso Central/economia , Comércio/economia , Humanos , Internet/tendências , Oriente Médio/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/economia , Teofilina/efeitos adversos , Teofilina/economia
4.
J Atten Disord ; 20(6): 471-7, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26486603

RESUMO

OBJECTIVE: In the last decade, dramatic changes have occurred in stimulant medication prevalence and in patterns of stimulant treatment. The resultant trends merit analysis. METHOD: Usage patterns of stimulant medication, specifically amphetamine and methylphenidate, were analyzed for trends. The data were obtained from datasets including pharmacy claims, aggregate production quotas, bulk distribution to counties, pharmacy prescription sales, parent surveys, and physician visit surveys. Stimulant medication trends were organized by drug subclass, year, age group, gender, country, prescriber specialty, diagnosis, and expenditures. RESULTS: Major recent trends are as follows: amphetamine medication usage has prominently surpassed methylphenidate, total stimulant prescription sales to adults have surpassed those for youth, and more adult women are prescribed stimulants than adult men. CONCLUSION: Stimulant medication treatment-particularly of amphetamines-is rapidly expanding in the United States. Off-label use is reported to be at least 40% of total use and appears to be more common in adults. (J. of Att. Dis. 2016; 20(6) 471-477).


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Adolescente , Adulto , Distribuição por Idade , Anfetaminas/economia , Anfetaminas/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/economia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Estimulantes do Sistema Nervoso Central/economia , Criança , Prescrições de Medicamentos/economia , Prescrições de Medicamentos/estatística & dados numéricos , Feminino , Gastos em Saúde/tendências , Humanos , Masculino , Metilfenidato/economia , Metilfenidato/uso terapêutico , Uso Off-Label/economia , Uso Off-Label/estatística & dados numéricos , Padrões de Prática Médica/economia , Padrões de Prática Médica/estatística & dados numéricos , Padrões de Prática Médica/tendências , Prevalência , Distribuição por Sexo , Estados Unidos/epidemiologia , Adulto Jovem
5.
J Manag Care Pharm ; 13(7): 561-9, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17874862

RESUMO

BACKGROUND: Many therapies exist for treating adult attention-deficit/hyperactivity disorder (ADHD), also referred to as attention-deficit disorder (ADD), but there is no research regarding cost differences associated with initiating alternative ADD/ADHD drug therapies in adults. OBJECTIVE: To compare from the perspective of a large self-insured employer the risk-adjusted direct health care costs associated with 3 alternative drug therapies for ADD in newly treated patients: extended-release methylphenidate (osmotic release oral system-MPH), mixed amphetamine salts extended release (MAS-XR), or atomoxetine. METHODS: We analyzed data from a US claims database of 5 million beneficiaries from 31 large self-insured employers (1999-2004). Analysis was restricted to adults aged 18 to 64 years with at least 1 diagnosis of ADD/ADHD (International Classification of Diseases, Ninth Revision, Clinical Modification [ICD-9-CM] codes 314.0x--attention deficit disorder; 314.00--attention deficit disorder without hyperactivity; or 314.01--attention-deficit disorder with hyperactivity) and at least 1 pharmacy claim for OROS-MPH, MAS-XR, or atomoxetine identified using National Drug Codes. In preliminary analysis, we calculated the duration of index ADHD drug therapy as time from index therapy initiation to a minimum 60-day gap. Because the median duration of index ADHD drug therapy was found to be approximately 90 days, the primary measures were total direct medical plus drug costs and medical-only costs computed over 6 months following therapy initiation. Adults were required to have continuous eligibility 6 months before and 6 months after their latest drug therapy initiation and no ADHD therapy during the previous 6 months. Cost was measured as the payment amount made by the health plan to the provider rather than billed charges, and it excluded patient copayments and deductibles. Medical costs included costs incurred for all-cause inpatient and outpatient/other services. Costs were adjusted for inflation to 2004 U.S. dollars using the consumer price index for medical care. T tests were used for descriptive cost comparisons. Generalized linear models (GLMs) were used to compare costs of adults receiving alternative therapies, adjusting for demographic characteristics, substance abuse, depression, and the Charlson Comorbidity Index. RESULTS: Of the 4,569 patients who received 1 of these 3 drug therapies for ADHD, 31.8% received OROS-MPH for a median duration of 99 days of therapy, 34.0% received MAS-XR for a median 128 days, and 34.2% received atomoxetine for a median 86 days. In the 6-month follow-up period, the mean (standard deviation) total medical and drug costs were $2,008 ($3,231) for OROS-MPH, $2,169 ($4,828) for MAS-XR, and $2,540 ($4,269) for atomoxetine-treated adults. The GLM for patient characteristics suggested that 6-month, risk-adjusted mean medical costs, excluding drug costs, for adults treated with OROS-MPH were $142 less (10.4%, $1,220 vs. $1,362) compared with MAS-XR (P =0.022) and $132 less (9.8%, $1,220 vs. $1,352) compared with atomoxetine (P =0.033); risk-adjusted mean medical costs were not significantly different between MAS-XR and atomoxetine. The GLM comparison of risk-adjusted total direct costs, including drug cost, was on average $156 less (8.0%, $1,782 vs. $1,938) for OROS-MPH compared with MAS-XR (P = 0.017) and $226 less (11.3%, $1,782 vs. $2,008) compared with atomoxetine (P <0.001); the risk-adjusted total direct costs were not significantly different between MAS-XR and atomoxetine. Two high-cost outliers (greater than 99.96th percentile, 1 each for OROS-MPH and atomoxetine) accounted for $47 (30%) of the $156 cost difference between OROS-MPH and MAS-XR and $11 (5%) of the $226 cost difference between OROS-MPH and atomoxetine, and the medical diagnoses for the highest-cost claims for these 2 outlier patients were unrelated to ADHD. CONCLUSIONS: After adjusting for patient characteristics including substance abuse, depression, and the Charlson Comorbidity Index, adults treated with OROS-MPH had, on average, slightly lower medical and total medical and drug costs than those treated with MAS-XR or atomoxetine over the 6-month period after drug therapy initiation. Approximately 30% of the cost difference compared with MAS-XR was attributable to 1 high-cost outlier with medical diagnoses for the highest-cost claim that were unrelated to ADHD.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno do Deficit de Atenção com Hiperatividade/economia , Custos de Cuidados de Saúde , Inibidores da Captação Adrenérgica/economia , Inibidores da Captação Adrenérgica/uso terapêutico , Adulto , Anfetaminas/economia , Anfetaminas/uso terapêutico , Cloridrato de Atomoxetina , Estimulantes do Sistema Nervoso Central/economia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Custos e Análise de Custo/métodos , Bases de Dados Factuais/estatística & dados numéricos , Preparações de Ação Retardada/economia , Preparações de Ação Retardada/uso terapêutico , Feminino , Humanos , Seguro Saúde/estatística & dados numéricos , Seguro de Serviços Farmacêuticos/economia , Seguro de Serviços Farmacêuticos/estatística & dados numéricos , Masculino , Programas de Assistência Gerenciada/economia , Programas de Assistência Gerenciada/estatística & dados numéricos , Metilfenidato/economia , Metilfenidato/uso terapêutico , Pessoa de Meia-Idade , Análise Multivariada , Propilaminas/economia , Propilaminas/uso terapêutico , Reprodutibilidade dos Testes , Fatores de Tempo
6.
Clin Ther ; 23(11): 1904-21, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11768842

RESUMO

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a common childhood neurobehavioral disorder characterized by inattention, hyperactivity, and impulsivity. Prevalence estimates in elementary school children generally range from 3% to 8%. ADHD is frequently treated with psychostimulant medications, which have been shown to improve both cognitive and behavioral outcomes for most children. OBJECTIVE: The goal of this study was to estimate the total expected costs for the treatment and management of school-age children with ADHD using 6 commonly prescribed pharmacotherapies: methylphenidate immediate-release/extended-release (MPH IR/ER), methylphenidate immediate-release (MPH IR), Metadate CD (branded MPH IR/ER), Concerta (branded MPH ER), Ritalin (branded MPH IR), and Adderall (a combination of dextroamphetamine and amphetamine salts). METHODS: A literature review and clinical assessment using a 27-question survey instrument were used to capture information on the clinical characteristics of ADHD, including common treatment regimens, clinical management of patients, pathways of care, and components of care. A meta-analysis provided response rates for 3 commonly used pharmacotherapies: Metadate CD, MPH IR, and Adderall. Information from the clinical assessment and the meta-analysis were used to populate a decision-analytic model to compute total expected cost for each comparator. RESULTS: The average total annual expected cost per patient was $1,487 for Metadate CD, $1,631 for Concerta. $1,792 for MPH IR/ER, $1,845 for MPH IR, $2,080 for Ritalin, and $2,232 for Adderall. CONCLUSIONS: Metadate CD had the lowest total expected cost and Adderall had the highest total expected cost among the ADHD pharmacotherapies evaluated. The differences were attributable to differences in drug-acquisition costs and the need for in-school dosing of twice-daily and thrice-daily medications.


Assuntos
Anfetaminas/economia , Anfetaminas/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno do Deficit de Atenção com Hiperatividade/economia , Estimulantes do Sistema Nervoso Central/economia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Metilfenidato/economia , Metilfenidato/uso terapêutico , Anfetaminas/administração & dosagem , Estimulantes do Sistema Nervoso Central/administração & dosagem , Criança , Humanos , Metilfenidato/administração & dosagem
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