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LSD 25 : ウィキペディア英語版
Lysergic acid diethylamide

Lysergic acid diethylamide ( or or ), abbreviated LSD or LSD-25, also known as lysergide (INN) and colloquially as acid, is a psychedelic drug of the ergoline family, well known for its psychological effects—which can include altered thinking processes, closed- and open-eye visuals, synesthesia, an altered sense of time, and spiritual experiences—as well as for its key role in 1960s counterculture. It is used mainly as an entheogen and recreational drug. LSD is non-addictive.〔 However, acute adverse psychiatric reactions such as anxiety, paranoia, and delusions are possible.
LSD was first synthesized by Albert Hofmann in 1938 from ergotamine, a chemical derived by Arthur Stoll from ergot, a grain fungus that typically grows on rye. The short form "LSD" comes from its early code name ''LSD-25'', which is an abbreviation for the German "Lysergsäure-diethylamid" followed by a sequential number.〔Hofmann, Albert. ''(LSD—My Problem Child )'' (McGraw-Hill, 1980). ISBN 0-07-029325-2.〕〔 LSD is sensitive to oxygen, ultraviolet light, and chlorine,〔 especially in solution, though its potency may last for years if it is stored away from light and moisture at low temperature. In pure form it is a colorless, odorless, tasteless solid.〔(【引用サイトリンク】url=http://www.cs.cmu.edu/afs/cs.cmu.edu/user/ehn/Web/release/problem-child.html )〕 LSD is typically either swallowed (oral) or held under the tongue (sublingual), usually on a substrate such as absorbent blotter paper, a sugar cube, or gelatin. In its liquid form, it can also be administered by intramuscular or intravenous injection. Interestingly, unlike most other classes of illicit drugs and other groups of psychedelic drugs such as tryptamines and phenethylamines, when LSD is administered via intravenous injection the onset is not immediate, instead taking approximately 30 minutes before the effects are realized. LSD is very potent, with 20–30 µg (micrograms) being the threshold dose.〔
Hofmann discovered the psychedelic properties of LSD in 1943.〔(【引用サイトリンク】title=Hallucinogenic effects of LSD discovered )〕 It was introduced commercially in 1947 by Sandoz Laboratories under the trade-name Delysid as a drug with various psychiatric uses.〔Arthur Stoll and Albert Hofmann (LSD Patent ) April 30, 1943 in Switzerland and March 23, 1948 in the United States.〕 In the 1950s, officials at the U.S. Central Intelligence Agency (CIA) thought the drug might be applicable to mind control and chemical warfare; the agency's MKULTRA research program propagated the drug among young servicemen and students. The subsequent recreational use of the drug by youth culture in the Western world during the 1960s led to a political firestorm that resulted in its prohibition.〔(【引用サイトリンク】title=LSD: cultural revolution and medical advances )
== Effects ==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Lysergic acid diethylamide」の詳細全文を読む



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