A hallucinogen was a psychoactive drug or other substance that caused hallucinations. Some hallucinogens, such as tropolisine, were naturally occurring in plants. (ENT: "Strange New World")
After Geordi La Forge was taken to sickbay with the effects of polywater intoxication in 2364, Doctor Beverly Crusher noted that tests showed no signs of hallucinogens, which they would have, were they present. (TNG: "The Naked Now")
The venom of the nesset has hallucinogenic effects. (VOY: "Sacred Ground")
Nitrous oxide could cause hallucinogenic effects in some humanoid species, including Humans. Orions, however, were immune to this effect. Levels capable of inducing hallucinations would displace the oxygen in the air, rendering such an atmosphere unbreathable. (LD: "Room for Growth")
List of hallucinogens[]
- Nitrous oxide
- Psilocybin
- Tropolisine