Methamphetamine is a powerful, highly addictive stimulant that affects the central nervous system. It comes in the form of a white, odorless, bitter- tasting crystalline powder that can be swallowed, inhaled, smoked, or injected. It is chemically similar to amphetamine, a drug used to treat attention-deficit hyperactivity disorder (ADHD) and narcolepsy. Methamphetamine increases the amount of the natural chemical dopamine in the brain, which can lead to addiction and harmful effects on the central nervous system. It is classified as a Schedule II stimulant, which means it has a high potential for misuse

. The street names for methamphetamine include crystal, ice, glass, speed, and others