D-Lysergic Acid Diethylamide, commonly called acid, LSD, or
LSD-25, is a powerful semisynthetic hallucinogen and psychedelic
entheogen. A typical dose of LSD is only 100 micrograms, a tiny
amount equal to one-tenth the weight of a grain of sand. LSD
causes a powerful intensification and alteration of senses,
feelings, memories, and self-awareness for 6 to 12 hours. In
addition, LSD usually produces visual effects such as moving
geometric patterns, "trails" behind moving objects, and
brilliant colors. LSD usually does not produce hallucinations in
the strict sense, but instead illusions and vivid daydream-like
fantasies. At higher concentrations it can cause synaesthesia.
The pharmacological effects are sometimes followed by long-
lasting or even permanent changes in a user's psychology, point
of view and personality. LSD is synthesized from lysergic acid
and is sensitive to oxygen, ultraviolet light, and chlorine,
especially in solution. In pure form it is colorless, odorless,
and bitter. LSD is typically deli