News tagged with methamphetamine

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Breaking Bad and crystal meth—a chemical reaction

Crystal meth has at least two faces, in common with those people unfortunate enough to succumb to its charms, as these horrific before-and-after pics show. I'd like to look at the drug chemically, to shine ...

Aug 28, 2013
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Australia cracks down on synthetic drugs

Australia imposed an interim ban on 19 synthetic cannabis and cocaine-like drugs on Sunday as part of a crackdown on the psychoactive substances which mimic the highs of their illegal counterparts.

Jun 16, 2013
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Soda and illegal drugs cause similar damage to teeth

Addicted to soda? You may be shocked to learn that drinking large quantities of your favorite carbonated soda could be as damaging to your teeth as methamphetamine and crack cocaine use. The consumption of illegal drugs and ...

May 28, 2013
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Methamphetamine

Methamphetamine (/mɛθæm'fɛtəmiːn/ also known as metamfetamine (INN), methylamphetamine, N-methylamphetamine, and desoxyephedrine) is a psychostimulant and sympathomimetic drug.

A member of the family of phenylethylamines, methamphetamine is chiral, with two isomers:

The levorotary form, called levomethamphetamine, is an over-the-counter drug used in inhalers for nasal decongestion. Levomethamphetamine does not possess any significant central nervous system activity or addictive properties. The remainder of this article deals only with the dextrorotatory form, called dextromethamphetamine, and the racemic form.

Methamphetamine enters the brain and triggers a cascading release of dopamine, serotonin and norepinephrine. It is highly active in the mesolimbic reward pathways of the brain, inducing intense euphoria, with risk for addiction. To a lesser extent, methamphetamine acts as a dopaminergic and adrenergic reuptake inhibitor with high concentrations serving as a monoamine oxidase inhibitor. Users may become hypersexual or obsessed with a task, thought or activity. Withdrawal is characterized by excessive sleeping, eating, and major depression, often accompanied by anxiety and drug-craving. Methamphetamine users may take sedatives such as benzodiazepines as a means of easing their "come down", anxiety or enable them to sleep.

Methamphetamine has medical uses as well as the potential to cause addiction. Methamphetamine addiction typically occurs when a person begins to use the drug as a stimulant, for its powerful enhancing effects on sex, mood and energy, alertness and ability to concentrate, and weight loss and appetite suppression, among its other psychological and physical effects.[citation needed] Over time tolerance develops, and users have greater difficulty functioning and experiencing pleasure than they did before, which persists indefinitely due to neurotoxicity produced by methamphetamine in long-term recovered addicts.[citation needed]

Nicknames for methamphetamine are numerous and vary significantly from region to region, some common nicknames for methamphetamine include "crank", "meth", "ice", "crystal", "glass", "shabu" or "syabu" (Philippines), "tik" (South Africa), "P" (New Zealand), "piko" (Slovakia), and "yaa baa" (Thailand). Methamphetamine is sometimes referred to as "speed", but this term is generally reserved for regular amphetamine and dextroamphetamine.

This text uses material from Wikipedia licensed under CC BY-SA