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TiHKAL
1997 book by Alexander Shulgin and Ann Shulgin
TiHKAL
TiHKAL: The Continuation, also known as Tryptamines I Have Known and Loved, is a 1997 book written by Alexander Shulgin and Ann Shulgin. It is about a family of psychoactive drugs known as tryptamines, which includes psychedelics, other hallucinogens, and entactogens. The book has two halves, and the second part of the book contains detailed entries on 55 tryptamines. TiHKAL is a sequel to PiHKAL: A Chemical Love Story (Phenethylamines I Have Known and Loved) (1991).
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