Cross tolerance between LSD and psilocybin

H Isbell, AB Wolbach, A Wikler, EJ Miner - Psychopharmacologia, 1961 - Springer


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 …

Last updated: Jul 27, 2020