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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

    LSD is synthetically made from lysergic acid, which is found in ergot, a fungus that grows on rye and other grains. It is so potent its doses tend to be in the microgram (mcg) range. It's effects, …

  3. LSD: What to Know - WebMD

    LSD (lysergic acid diethylamide), also called “acid,” is a type of synthetic and mind-altering substance (psychedelic). This belongs to a class of drugs called hallucinogens. When you take …

  4. 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.

  5. Side Effects of LSD: Short & Long-Term Health Effects of LSD (Acid)

    Jul 30, 2025 · As with most illicit substances, LSD (acid) can be bad for you, as it does carry health risks and the potential for dangerous side effects. By interfering with normal serotonin …

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

    May 27, 2020 · LSD — casually known as acid — is a powerful hallucinogenic drug made from lysergic acid, a fungus that grows on grains like rye. You might also hear it referred to as …

  7. LSD vs Acid: Understanding the Differences - Nova Recovery Center

    Jun 10, 2025 · When discussing hallucinogens, the terms lsd vs acid are often used interchangeably. Both refer to the same substance: lysergic acid diethylamide. While “LSD” is …

  8. LSD - Alcohol and Drug Foundation

    LSD (lysergic acid diethylamide) is a psychedelic drug, which means it can affect all senses, altering a person’s thinking, sense of time and emotions. Psychedelics can cause a person to …

  9. LSD (Lysergic acid diethylamide): Origins, types & effects

    Oct 24, 2022 · LSD, commonly known as acid, is the most potent hallucinogen yet discovered: a drug that induces lengthy psychedelic trips with visual disturbances, sensory distortion, …

  10. Substance use - LSD: MedlinePlus Medical Encyclopedia

    May 4, 2024 · It is an illegal street drug that comes as a white powder or clear colorless liquid. It is available in powder, liquid, tablet, or capsule form. LSD is usually taken by mouth. Some …