Previous studies demonstrated that tolerance to the long-term neurotoxic effects of methamphetamine on dopamine neurons could be induced by pretreating with multiple injections of escalating doses of methamphetamine. The mechanism(s) underlying this tolerance phenomenon is unknown. Some recent studies suggested that aberrant vesicular monoamine transporter-2 (VMAT-2) and dopamine transporter fu...

UNLABELLED The methamphetamine molecule has a chiral center and exists as 2 enantiomers, d-methamphetamine (the more active enantiomer) and l-methamphetamine (the less active enantiomer). d-Methamphetamine is associated with more intense stimulant effects and higher abuse liability. The objective of this study was to measure the pharmacokinetics of d-methamphetamine for comparison with both l-m...

methamphetamine (ma) is a potent, addictive psychostimulant that has dramatic effects on the central nervous system (cns). the onset of methamphetamine use has been linked to heightened attention, and chronic methamphetamine use has been associated with deficits in different aspects of attention that can significantly persist into abstinence. attention deficits in chronic methamphetamine users ...

BACKGROUND Australia has one of the highest rates of methamphetamine use in the world; however, treatment access for methamphetamine is comparatively low. This descriptive study aimed to identify patterns of treatment utilization and perceived barriers to accessing treatment among dependent methamphetamine users in the hope that such information will enable services to more appropriately respon...

The behavioral effect and acute toxicity of methamphetamine were tested alone and in combination with quinine in rats. Quinine prolonged and increased the effect of methamphetamine. The enhancement of methamphetamine-induced stereotyped behavior was very marked when quinine was given prior to or simultaneously with methamphetamine. However, the time for onset of methamphetamine-induced stereoty...

Methamphetamine is a potent psychomotor stimulant and a major drug of abuse. There is currently no effective medication available for treatment for methamphetamine addiction. The present study investigated the role of the dopamine D3 receptor on IV methamphetamine self-administration and its effect on methamphetamine induced neurochemical changes. Acute administration of the putative D3 recepto...

This study describes the extent to which methamphetamine users perceive that their methamphetamine use has resulted in violent behavior, and describes the level of self-reported prevalence of specific violent criminal behaviors irrespective of methamphetamine use. Predictors of these two violence-related indicators, in terms of potential correlates from substance use history, criminal history, ...

AIMS Review the current evidence regarding the prevalence of methamphetamine use among men who have sex with men (MSM) and to evaluate the factors that contribute to methamphetamine use and potential for sexual transmission of HIV and other infectious diseases. METHODS Databased reports address (1) epidemiology of methamphetamine use in MSM; (2) methamphetamine use and risk behaviors for sexu...

Abstract Methamphetamine is a potent and highly addictive psychostimulant, one of the most widely used illicit drugs. Over recent years, its global usage seizure have been on rapid rise, with growing detrimental effects mental physical health, devastating psychosocial impact pressing for intervention. Among unwanted methamphetamine, acute long-term sleep impairments are major concern, posing si...

Nov 30, 2012 . Didrex is metabolized to methamphetamine. prescription drugs (Adderall and various amphetamine salts) or as a result of methamphetamine . Methamphetamine (contracted from Nmethylamphetamine) is a strong central nervous system. .. Methamphetamine is metabolized by the liver enzyme CYP2D6, so CYP2D6. .. Jump up to: "Adderall XR Prescribing Information" (PDF ). United . Nov 2, 2007 ...