Methamphetamines (Crystal Meth)

Methamphetamine (speed, meth, chalk, ice, crystal, glass and tweak) is an addictive stimulant that is closely related to amphetamine, but has longer lasting and more toxic effects on the central nervous system. It has a high potential for abuse and addiction. It increases wakefulness and physical activity, and decreases appetite. Chronic, long-term use can lead to psychotic behavior, hallucinations and stroke.

Nearly half of county law enforcement officials consider methamphetamine their primary drug problem, more than cocaine, marijuana and heroin combined.