Methamphetamine

Methamphetamine is a stimulant drug usually used as a white, bitter-tasting powder or a pill. 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). Learn about the health effects of methamphetamine and read the DrugFacts.

Common Names

Chalk, Crank, Crystal, Fire, Glass, Go Fast, Ice, Speed, Tina

0.5% of high school seniors used methamphetamine in the past year.

Source: 2019 Monitoring the Future Survey

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Clinical Trials

Clinical trials are research studies in human volunteers conducted to answer specific health questions. Learn about the NIH-sponsored clinical trials available to you.