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  1. Hallucinogen - Wikipedia

    Psychedelics, also known as serotonergic psychedelics or classical hallucinogens, are serotonin 5-HT 2A receptor agonists with hallucinogenic effects.

  2. Hallucinogen | Definition, Types, & Effects | Britannica

    Hallucinogen, substance that produces psychological effects that tend to be associated with phenomena such as dreams or religious exaltation or with mental disorders such as …

  3. Hallucinogens - DEA.gov

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

  4. Hallucinogens: LSD, Peyote, Psilocybin, PCP & Other Psychedelic …

    Apr 18, 2023 · Hallucinogens, or psychedelics, are a group of drugs that alter a person’s perception of reality. They also change a person’s thoughts and feelings. Types of …

  5. Psychedelic and Dissociative Drugs - National Institute on Drug …

    Aug 29, 2024 · Psychedelic and dissociative drugs can temporarily alter a person’s mood, thoughts, and perceptions. Among other health effects and safety concerns, people who use …

  6. Hallucinogen Addiction: Types & Effects of Mind-Altering Drugs

    Apr 1, 2025 · Explore hallucinogen addiction, including information on its addictive potential, types of hallucinogens, health risks, treatment, and more.

  7. What Are Hallucinogens? | Drug Facts About Hallucinogens

    Hallucinogens are drugs that alter the user’s thinking processes and perception in a manner that leads to significant distortions of reality.

  8. Get the Facts - World Drug Campaign

    The main types of hallucinogens are d-lysergic acid diethylamide (LSD), hencyclidine (PCP), hallucinogenic amphetamines, mescaline and psilocybe mushrooms. What is it? LSD is a semi …

  9. Hallucinogens - Special Subjects - MSD Manual Consumer Version

    Users under the influence of a hallucinogen, usually LSD, can become extremely anxious and begin to panic, resulting in a bad trip. They may want to stop the trip, which is not possible.

  10. Hallucinogens - Chestnut

    Hallucinogens are a diverse group of drugs that alter a person’s awareness of their surroundings as well as their own thoughts and feelings. They are commonly split into two categories: …