What is methamphetamine?
Methamphetamine is a powerful, highly addictive stimulant that affects the central nervous system. Crystal methamphetamine is a form of the drug that looks like glass fragments or shiny, bluish-white rocks. It is chemically similar to amphetamine, a drug used to treat attention-deficit hyperactivity disorder (ADHD) and narcolepsy, a sleep disorder.
Other common names for methamphetamine include blue, crystal, ice, meth, and speed.
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Source: National Institute on Drug Abuse; National Institutes of Health; U.S. Department of Health and Human Services.