Withdrawal syndrome includes apathy, long periods of sleep, irritability, depression and disorientation. The physical dependence to these drugs is unknown. There is a moderate psychological dependence. The usual methods of administration are oral or smoked. Fatigue, paranoia, and possible psychosis, are effects of overdose.
Withdrawal syndrome includes insomnia, hyperactivity, and occasional decreased appetite.
There is no physical dependence on LSD, Psilocybin, Mescaline, and Peyote. The psychological dependence of LSD, Psilocybin, Mescaline, and Peyote are unknown. The physical dependence of Phencyclidine is unknown, but the psychological dependence is high. The usual methods of administration are oral, injected and smoked. Possible side effects are illusions and hallucinations, poor perception of time and distance.