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 …

What is LSD? 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.

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, often …

Jun 10, 2025 · 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 …

What is LSD? 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 …

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.

Jul 15, 2025 · Find out how LSD was discovered, how it went from a wonder drug to an illegal substance, and how it's used today.

May 4, 2024 · LSD affects the action of a brain chemical called serotonin. Serotonin helps control behavior, mood, the senses, and thinking. LSD is in a class of drugs called hallucinogens. These are …

Sep 9, 2025 · LSD can trigger or exacerbate underlying psychiatric disorders, leading to psychosis, schizophrenia, or long-term hallucinations.

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 “dots” or “lucy.”