Psilocybin
A hallucinogen in certain types of mushrooms that grow in parts of South America, Mexico, and the United States.
Street Names: Little Smoke, Magic Mushrooms, Purple Passion, Sacred Mush, Sewage Fruit, Shrooms, Zoomers
Possible Health Effects: Hallucinations, altered perception of time, inability to tell fantasy from reality, panic, muscle relaxation or weakness, problems with movement, enlarged pupils, nausea, vomiting, drowsiness.