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  1. LSD - Wikipedia

    LSD is extremely potent, with noticeable effects at doses as low as 20 micrograms and is sometimes taken in much smaller amounts for microdosing. Despite widespread use, no fatal human overdoses …

  2. LSD - PsychonautWiki

    Lysergic acid diethylamide (also known as Lysergide, LSD-25, LSD, L, Lucy, and Acid) is a classical psychedelic substance of the lysergamide class. [2] It is perhaps the most researched and culturally …

  3. LSD - Meaning, Effects & Facts | HISTORY

    Jun 14, 2017 · LSD, or lysergic acid diethylamide, is a hallucinogenic drug that was first synthesized a Swiss scientist in the 1930s.

  4. LSD | Definition, Psychological Effects, & Ergot Fungus | Britannica

    Nov 25, 2025 · LSD, potent synthetic hallucinogenic drug that can be derived from the ergot alkaloids of the fungus Claviceps purpurea. LSD is prepared by chemical synthesis in a laboratory.

  5. Lysergic acid diethylamide toxicity - WikEM

    Doses of 1 to 1.5 μg/kg produce psychedelic effects, with the “optimum” dosage for a typical fully unfolded LSD reaction is estimated to be in the range of 100–200 μg.

  6. History of LSD - Wikipedia

    The events of this first LSD trip, now known as "Bicycle Day", after the bicycle ride home, proved to Hofmann that he had indeed made a significant discovery: a psychoactive substance with …

  7. LSD Manufacturing: Process, Chemistry, and Risks

    May 23, 2025 · Explore how LSD is made, the chemical process involved, key ingredients, associated risks, and the ethical debate over its production and use.

  8. LSD - Wikiwand

    Lysergic acid diethylamide, commonly known as LSD and by the slang names acid and lucy, is a semisynthetic hallucinogenic drug derived from ergot, known for its...

  9. LSD: What to Know - WebMD

    Jun 10, 2025 · LSD is a hallucinogenic drug that alters perception, mood, and thoughts. Learn about its effects, risks, and potential uses.

  10. LSD - TripSit Wiki

    LSD is non-addictive, is not known to cause brain damage, and has extremely low toxicity relative to dose. However, acute adverse psychiatric reactions such as anxiety, paranoia, and delusions are …