font size

Definition of LSD

LSD: Lysergic acid diethylamide is an hallucinogen. LSD is an abbreviation of the German term Lysergsaure-Diathylamid for lysergic acid diethylamide.

LSD is considered the typical hallucinogen and the characteristics of its action and effects apply to the other hallucinogens, including mescaline, psilocybin, and ibogaine. LSD was discovered in 1938. It is manufactured from lysergic acid, which is found in ergot, a fungus that grows on rye and other grains.

LSD is sold on the street as "acid" in tablets, capsules, and, occasionally, liquid form. It is odorless, colorless, and has a slightly bitter taste. It is usually taken by mouth. LSD is often added to absorbent paper, such as blotter paper, and divided into small decorated squares, with each square representing one dose.

The effects of LSD are unpredictable. The user usually feels the first effects of the drug 30 to 90 minutes after taking it. The physical effects include dilated pupils, higher body temperature, increased heart rate and blood pressure, sweating, loss of appetite, sleeplessness, dry mouth, and tremors. The user may feel several different emotions at once or swing rapidly from one emotion to another. If taken in a large enough dose, the drug produces delusions and visual hallucinations.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=30979
Last Editorial Review: 10/3/2012

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

Women's Health

Find out what women really need.

advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations

From WebMD