Most hallucinogenic drugs hallucinogens contain nitrogen and are classified as an alkaloid. Hallucinogens cause hallucinations in which the user may feel sensations, hear sounds, and see images during a “trip” while using the drug that seem real but do not exist in reality.

As the hallucinogen disrupts the interaction of nerve cells and neurotransmitters it may interfere with muscle control, mood, perception of pain and body temperature. Extended use can also lead to a prolonged period of “flashbacks,” in which the user may relive the unreal experiences while using the drug. Below are some of the most commonly recognized hallucinogenic drugs:

  • • LSD d-lysergic acid diethylamide
  • • Peyote
  • • Psilocybin 4-phosphoryloxy-N N-dimethyltryptamine
  • • PCP phencyclidine