What is it?
Methamphetamine, also known as "meth," "speed" or "crank" is a stimulant drug that affects the central nervous system.

How is it used?
Meth can be found in pill form or a powdered form and can be swallowed, snorted, injected or smoked.

How does it affect you?
Methamphetamine can affect heart rate and blood pressure. It can also cause insomnia, increased physical activity or produce symptoms of paranoia. Meth is addictive enabling users to develop a tolerance quickly, needing increasing amounts to get high, and going on longer binges, forcing users to avoid sleep.

© Information on drugs facts comes from a number of sources, primarily the National Institute on Drug Abuse and the Partnership For A Drug-Free America.