Resource Center for Families MH Hallucinogens (LSD, peyote, psilocybin, PCP, DXM)
Resource Center for Families MH Hallucinogens  (LSD, peyote, psilocybin, PCP, DXM)

Hallucinogens (LSD, Peyote, Psilocybin, PCP, DXM)

NIDA InfoFacts: Hallucinogens (also in Spanish)

Mind Over Matter: Hallucinogens (also in Spanish)

Sara's Quest: Hallucinogens (quiz)

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 mescaline)

LSD use may cause:

  • Anxiety
  • Blurred vision
  • Dilated pupils
  • Seeing things that aren't there (hallucinations)
  • Paranoid delusions
  • Tremors

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.
[Source: MedlinePlus Encyclopedia]

LSD / Acid (NIDA)

Drug Guide: LSD

Drug Guide: Mushrooms (Psilocybin)

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 take it.

  • 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 - 30 minutes.
  • 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 acute kidney failure, heart arrhythmias, muscle rigidity, seizures, and even death.

Because of the pain-killing (analgesic) properties of PCP, users who get seriously injured may not feel any pain.
[Source: MedlinePlus Encyclopedia]

MedlinePlus Encyclopedia: Phencyclidine Overdose (PCP, English and Spanish)

Drug Guide: Peyote

Drug Guide: DXM (

For books and videos: try the Kreamer Resource Center for Families Library Catalog or try your local public library.

updated 10-31-2011

Copyright © 1996-2015 The Children's Mercy Hospital