This was performed on methanolic extracts from the gastric content, blood and hydrolysats from kidney and liver. We tried to detect halucinogenic indolic components and especially psilocybin and psilocin. Psilocybin rapidly hydrolyses in the body to create psilocin which is the biologically active substance. This hydrolysis is performed in the ratio 100 / 72, depending on each molecular weight. We found psilocin but no psilocybin, not even in the gastric content, which confirmed the rapid hydrolysis because of the high acidity of the gastric juice.