A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed.
sympathomimetic amine closely related chemically to both amphetamine and ephedrine, with actions similar to those of amphetamine; abuse may lead to dependence.
An amphetamine with central nervous system (CNS) stimulating activity. Methamphetamine acts by both facilitating the release of catecholamines, particularly noradrenaline, dopamine and serotonin, from nerve terminals in the brain and by inhibiting their uptake. This leads to an increase in synaptic concentration of these neurotransmitters and results in increased stimulation of postsynaptic receptors.
Methamphetamine is a very addictive stimulant drug. It can be smoked, injected, inhaled or taken by mouth. It has many street names, such as speed, meth, and chalk. Methamphetamine hydrochloride, the crystal form inhaled by smoking, is referred to as ice, crystal, glass and tina.
Methamphetamine affects the brain and can create feelings of pleasure, increase energy and elevate mood. Abusers may become addicted quickly, needing higher doses more often. Adverse health effects include irregular heartbeat, increased blood pressure and a variety of psychological problems. Long-term effects may include severe mental disorders, memory loss and severe dental problems.
NIH: National Institute on Drug Abuse