Definition: Meth is an amphetamine. The effects of amphetamines, especially methamphetamine, are similar to cocaine, but their onset is slower and their duration is longer. In general, chronic abuse produces a psychosis that resembles schizophrenia and is characterized by paranoia, picking at the skin, preoccupation with one's own thoughts, and auditory and visual hallucinations. Violent and erratic behavior is frequently seen among chronic abusers of amphetamines.

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Warning Signs of Teenage Drug Abuse
Is your teen experimenting with drugs or alcohol? Check these warning signs to be sure it hasn't crossed over to drug abuse.

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