بئوسایستین Baeocystin الکالوئید آنالوگ سیلوسایبین psilocybin
این الکالوئید دارای اثراتی مشابه با سیلوسایبین است و 4 میلی گرم ان دارای اثرات توهم زای بسیار ارامبخش و مشابه سیلوسایبین است .
این ماده به مقدار کم در قارچ جادویی وجود دارد و 10 میلی گرم ان دارای اثرات برابر با 10 میلی گرم سایلوسایبین است
Baeocystin was first isolated from the mushroom Psilocybe baeocystis,[1] and later from P. semilanceata,[2] Panaeolus renenosus, Panaeolus subbalteatus, and Copelandia chlorocystis. It was first synthesized by Troxler et al. (1959).
Little information exists with regard to human pharmacology, but in the book Magic Mushrooms Around the World, author Jochen Gartz reports being aware of a study in which "10 mg of baeocystin were found to be about as psychoactive as a similar amount of psilocybin."[citation needed] Gartz also reported in a research paper that a self-administered assay of 4 mg of baeocystin caused "a gentle hallucinogenic experience