Publications by authors named "Viroj Verachai"

Objectives: Use of methamphetamine (MA) commonly co-occurs with the use of other substances. The present study aims to examine substance initiation patterns of other substances, including alcohol, nicotine, inhalants, and cannabis (OTH), in MA users and its consequence on the time lag of MA dependence.

Methods: Sociodemographic, environmental, and clinical data were obtained from MA users at a Thai substance treatment center.

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Background And Objective: Males and females who use methamphetamine (MA) differ in sociodemographics, MA diagnoses, comorbidities, and brain activity. The objective of this study was to investigate sex differences in the characteristics of MA use and dependence in patients at a Thai substance treatment center.

Methods: Demographic, MA use, and diagnostic data for 782 MA users were obtained by using the Semi-Structured Assessment for Drug Dependence and Alcoholism-Thai version.

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Rationale: To our knowledge, only a few double-blind randomized controlled trials with antipsychotic drugs have been conducted to examine the treatment of methamphetamine-induced psychosis (MAP).

Objectives: The aims of this study are to compare the antipsychotic and adverse events of quetiapine, an atypical antipsychotic drug, to haloperidol, a standard treatment for primary psychotic disorder, in individuals with MAP.

Methods: Eighty individuals with MAP were randomly assigned into two groups, i.

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Aims: To explore the clinical features of methamphetamine-induced paranoia (MIP) and associations between MIP and a genetic polymorphism in dopamine β-hydroxylase (DBH-1021C→T).

Design: Retrospective analysis of clinical presentation and genetic association by χ(2) test and logistic regression analysis.

Setting: A Thai substance abuse treatment center.

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Background: Inhalants are being abused by large numbers of people throughout the world, particularly socio-economically disadvantaged children and adolescents. The neuropsychological effects of acute and chronic inhalant abuse include motor impairment, alterations in spontaneous motor activity, anticonvulsant effects, anxiolytic effects, sensory effects, and effects and learning, memory and operant behaviour (e.g.

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Objective: To synthesize the substance-dependence researches focusing on rehab treatment phase.

Material And Method: Several criteria were used to select studies for meta analysis. Firstly, the research must have focused on the rehab period on the substance-dependence treatment, secondly, only quantitative researches that used statistics to calculate effect sizes were selected, and thirdly, all researches were from Thai libraries and were done during 1997-2006.

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A study of HIV infection among substance abusers from 1987 to 2002 was performed in Thanyarak Institute on Drug Abuse (TIDA). From 118,676 anti HIV tests (6,076 - 10,626 tests each year) of TIDA inpatients, 17,526 tests were positive (474 - 2,041 tests each year) In 71,403 new substance abuse cases (3,724 - 6,184 cases each year), 12,401 cases were positive (17.4%), highest in 1990 28.

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A study of drug dependence treatment by therapeutic community (TC) in Thanyarak Institute on Drug Abuse from 1986 to 2000 was undertaken. 2,881 cases joined the TC program during this period (males 2,471 or 85.8%, females 410 or 14.

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Hepatitis C virus (HCV) is an infectious agent that has the potential to cause chronic liver disease, cirrhosis and hepatocellular carcinoma. We determined the prevalence and genotypes of HCV infection among groups of drug addicts: intravenous drug users (n = 134), methamphetamine users (n = 100), inhaled-drugs users (n = 19) and alcoholics (n = 50); a group of blood donors acted as a control. The control group consisted of 179 randomly-selected anti-HCV positive samples: these were subjected to HCV RNA screening and genotyping.

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