Hallucinogens (LSD, Peyote, Psilocybin, PCP,
NIDA InfoFacts: Hallucinogens
(also in Spanish)
Mind Over Matter: Hallucinogens
(also in Spanish)
Sara's Quest: Hallucinogens
LSD AND OTHER HALLUCINOGENS
LSD (lysergic acid diethylamide) is a very strong
hallucinogen. Only tiny amounts are needed to cause effects, such
as hallucinations. Other commonly abused hallucinogens include:
- Psilocybin (mushrooms, "shrooms")
- Peyote (a cactus plant containing the active ingredient
LSD use may cause:
- Blurred vision
- Dilated pupils
- Seeing things that aren't there (hallucinations)
- Paranoid delusions
Hallucinogens can lead to extreme anxiety and lack of reality,
called "bad trips". These experiences can come back as a
"flashback," even without using the drug again. Such experiences
typically occur during times of increased stress, and tend to occur
less often and intensely after stopping the drugs.
Drug Guide: LSD
Drug Guide: Mushrooms
PHENCYCLIDINE (PCP, "angel dust")
PCP is an illegal drug that comes as a white powder, which can be
dissolved in alcohol or water. PCP may be smoked, shot into a vein,
or taken by mouth. How quickly it affects you depends on how you
- Shooting up: If given through a vein, PCP's effects start
within 2-5 minutes.
- Smoked: The effects begin within 2 - 5 minutes, peaking at 15 -
- Taken by mouth: In pill form, or mixed with food or drinks,
PCP's effects usually start within 30 minutes. The effects tend to
peak in about 2 - 5 hours.
Different doses of PCP will cause different effects:
- Lower doses of PCP typically produce feelings of joy (euphoria)
and less inhibition, similar to being drunk.
- Higher doses cause numbness throughout the body, and perception
changes that may lead to extreme anxiety and violence.
- Large doses may produce paranoia, "hearing voices" (auditory
hallucinations), and psychosis
similar to schizophrenia.
- Massive doses, usually from taking the drug by mouth, may cause
kidney failure, heart arrhythmias,
and even death.
Because of the pain-killing (analgesic)
properties of PCP, users who get seriously injured may not feel any
MedlinePlus Encyclopedia: Phencyclidine
Overdose (PCP, English and Spanish)
PEYOTE AND DXM
Drug Guide: Peyote
Drug Guide: DXM
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