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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 …

  2. LSD (Acid): Effects, Hazards & Extent of Use - Drugs.com

    Extent of LSD Use Rates of LSD and hallucinogens in general use remain low among youth in the U.S. The National Survey on Drug Use and Health (NSDUH) in 2020 estimated that 7.1 million …

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

    Nov 25, 2025 · LSD produces marked deviations from normal behaviour, probably the consequence of its ability to inhibit the action of serotonin, though the mechanism of the drug …

  4. LSD: What to Know - WebMD

    When you take LSD, it reacts with these receptors to trigger the hallucinogenic effects within your senses. Researchers believe this reaction is also what causes the long-lasting high.

  5. LSD - DEA.gov

    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.

  6. LSD - Alcohol and Drug Foundation

    Key facts about LSD, its effects, and risks. Learn about its appearance, common forms, and impact on mental health. Knowledge to stay safe.

  7. Apr 5, 2023 · Today, there are more than a dozen studies taking place to evaluate the medical safety and efficacy of psychedelics, including LSD.

  8. LSD Fast Facts - United States Department of Justice

    LSD use among high school students is a particular concern. More than 8 percent of high school seniors in the United States used the drug at least once in their lifetime, and nearly 4 percent …

  9. LSD: Effects, Risks, Tips, and More - Healthline

    May 27, 2020 · The liver quickly metabolizes LSD and transforms it into inactive compounds. After 24 hours, you excrete only about 1 percent of unchanged LSD via your urine.

  10. What Is LSD Drug? Effects, Dangers & Key Facts Explained

    Sep 29, 2025 · Learn what the LSD drug is, its effects on the brain, health risks, and key facts. Understand dangers and how treatment can help with LSD-related issues.