Street Names:

"Caps," "Magic mushrooms," "Shrooms"

Chemical Composition:

Psilocybin and psilocyn are natural hallucinogenic substances in the psilocybe mushroom. These mushrooms are indigenous to tropical and subtropical regions of South America, Mexico and the U.S.

They are classified as Schedule I drugs under the Controlled Substances Act.



The psilocybe mushrooms can produce hallucinations. The active ingredients of the mushrooms are chemically related to LSD and can be synthetically produced. The effects of mushrooms are unpredictable because of the particular mushroom, environmental conditions, age, potency, preservation of the extract and the amount consumed. The onset of the effects is rapid; the effects subside within 2 hours.

Methods of Use:

The mushrooms are dried and then eaten or brewed as a tea. The dried mushrooms can also be added to foods to mask the bitter taste.

The hallucinogenic mushrooms have been used in native rituals for years.

Risks: People using hallucinogens may see images, hear sounds and feel sensations that do not exist. The mushrooms can produce emotional disturbances. Effects can include nausea, muscle weakness, dilated pupils, lack of coordination, sweating, nervous feeling and paranoia.


"Psilocybin and Psilocyn and other Tryptamines"
DEA Publication: Drugs of Abuse
U.S. Department of Justice
Drug Enforcement Administration

"Research Report Series - Hallucinogens and
Dissociative Drugs"
National Institute on Drug Abuse
National Institutes of Health

"Mind Over Matter Teacher's Guide- Hallucinogens"
National Institute on Drug Abuse
National Institutes of Health

Drug Resource
Partnership for a Drug-Free America
New York, NY