[Drug induced psychosis and schizophrenia in youth].

Among 233 young drug abusers with different drug-induced psychotic syndroms there were 84 patients whose psychosis showed a character of their own. Their drug-history and behaviour, specialities in their former life, in some cases also premorbid personality signs, mainly, however, psychotic diseases in their families and the psychopathological diagnosis showed statistical significant differences to other patients. The time of development of young people is an especially relevant prepsychotic situation, if it is influenced by drugs. There are a number of unanswered questions yet, for example why some patients under similar or equal prerequisites become drug abusers, while others get a psychosis, having its own laws. The cause of a drug-induced psychosis of its own laws among young people needs to be considered in several dimensions: effects of the drug, the individual constitution, factors of the specific personality, psychodynamic, reactive aspects in situations, as well as specific and typical factors in a phase of time. Clinical observation shows essential connections between the effects of the drug and a psychosis, having its own laws.