Lysergic acid diethylamide D-麦角酸二乙胺
(重定向自Delysid)

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![In a 2011 survey of 292 clinical experts in Scotland, LSD ranked 4th lowest in personal harm and 6th lowest in social harm out of 19 common recreational drugs.[31]](/uploads/202501/08/2011_Drug_Harms_Rankings.svg4746.png)
Lysergic acid diethylamide (LSD), also known as acid, is a psychedelic drug known for its psychological effects. This may include altered awareness of the surroundings, pe****tions, and feelings as well as sensations and images that seem real though they are not. It is used mainly as a recreational drug and for spiritual reasons. LSD is typically either swallowed or held under the tongue. It is often sold on blotter paper, a sugar cube, or gelatin. LSD injected intravenously takes effect in approximately 30 minutes.