Cross tolerance between LSD and psilocybin

@article{Isbell2004CrossTB,
  title={Cross tolerance between LSD and psilocybin},
  author={Harris Isbell and Albert B. Wolbach and Abraham Wikler and Edward J. Miner},
  journal={Psychopharmacologia},
  year={2004},
  volume={2},
  pages={147-159}
}
Summary1.In two experiments, using a cross-over design, the development of “direct” tolerance to LSD and psilocybin was measured after 10 (Experiment I) or 9 (Experiment II) volunteers had taken LSD in doses increasing to 1.5 meg/kg over the course of 6–7 days (Experiment I) or 13 days (Experiment II). On another occasion, the same patients received psilocybin in doses increasing to 150 mcg/kg over the course of 6–7 days (Experiment I) or 210 mcg/kg over the course of 13 days (Experiment II).2… 
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  • Chemistry, Medicine
    British journal of pharmacology
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