Hallucinogens are among the oldest known group of drugs used for their ability to alter human perception and mood.

DEA's revised and updated drug fact sheet about the class of drugs known as hallucinogens - what are they, what their origin is, what are the common street names for these drugs, what do they look like, how they are abused, what their effect is on the mind and bodies...

Ecstasy/MDMA acts as both a stimulant and hallucinogen, producing an energizing effect, distortions in time and perception, and enhanced enjoyment of tactile experiences. Adolescents and young adults use it to reduce inhibitions and to promote: • Euphoria, feelings of closeness, empathy, and sexuality Known as a party drug, ecstasy comes...

Ketamine is a dissociative anesthetic that has some hallucinogenic effects. Ketamine distorts the perception of sight and sound and makes the user feel disconnected and not in control. It is referred to as a “dissociative anesthetic hallucinogen” because it makes patients feel detached from their pain and environment. Ketamine can...

Lysergic acid diethylamide (LSD) is a potent hallucinogen that has a high potential for abuse and currently has no accepted medical use in treatment in the United States.

Peyote is a small, spineless cactus. The active ingredient in peyote is the hallucinogen mescaline.

Psilocybin comes from certain types of psilocybe mushrooms. Psilocybin is metabolized in the body to the active drug psilocyn, also present in many of the same mushrooms.

Salvia divinorum is a perennial herb in the mint family that is abused for its hallucinogenic effects.