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Illegal drugs are those that are not prescribed by a doctor or
bought at a drugstore. They are sometimes also called "street drugs."
Some examples of illegal drugs include heroin (a narcotic); cocaine
(a stimulant); LSD, mescaline, PCP, methamphetamine, and psilocybin
(hallucinogens); marijuana and hashish (cannabis); and gamma-hydroxybutyrate
(GHB). Although GHB is legal in Europe for anesthetic uses and in the United
States for government-approved clinical trials for treating narcolepsy, it has
been otherwise illegal in the United States since 1990.
The effects of illegal drugs can be unpredictable because:
Current as of:
February 20, 2015
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & H. Michael O'Connor, MD - Emergency Medicine
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