Crystal meth, or methamphetamine, is a stimulant drug that carries a high risk for physical dependence. In the United States, a different formulation of methamphetamine called Desoxyn is available by prescription to treat attention deficit hyperactivity disorder (ADHD).
Crystal meth has a number of street names, including ice and glass. It resembles shiny “rocks” or fragments of glass of varying sizes. It is the most potent form of meth.
The drug is odorless and colorless. As a stimulantTrusted Source, it speeds up activity in the central nervous system, which can cause a person to feel euphoric, powerful, and alert.
Illegal labs make the drug by combining ingredients derived from over-the-counter drugs, especially cough and cold medications, with toxic substances.