Methamphetamine is also known as speed, meth, crystal meth, crystal, LA crystal, chalk, ice, hot ice, super ice, crank, glass and LA glass.

Possible effects of meth use¹

Short-term effects

• increased wakefulness and physical activity
• euphoria
• decreased appetite
• a brief intense sensation (when smoked or injected)
• a several-hour high (when ingested orally or snorted)
• increased respiration
• hyperthermia (elevated body temperature)

Long-term effects

• addiction
• violent behavior
• anxiety
• confusion
• insomnia
• paranoia
• auditory hallucinations
• mood disturbances
• delusions

Chronic users who stop taking the drug may experience depression, anxiety, fatigue, paranoia, aggression, and an intense craving for meth.

0. National Institute on Drug Abuse. Methamphetamine: Abuse and Addiction. U.S. Department of Health and Human Services, 1998.