| Of these, cannabis and psilocybin are almost always used in their natural form. |
| The mechanisms of action of the hallucinogens lysergic acid and psilocybin are complex, with various effects on serotonergic, dopaminergic, and adrenergic receptors. |
| The University of Arizona has begun trials of psilocybin, the active ingredient in magic mushrooms, on patients suffering from obsessive-compulsive disorder. |
| Possessing, producing and trafficking in psilocybin mushrooms can result in fines, prison sentences and criminal records. |
| I've been qualified to give testimony as an expert on cannabis products, cocaine, psilocybin, morphine, Ritalin, and codeine. |
| Some hallucinogens, such as PCP and MDMA are addictive, while others, such as LSD, psilocybin, and mescaline are not. |
