[Pharmacological treatment of psychotic conditions].

Antipsychotic medication has been used for more than fifty years and has brought a dramatic improvement in the treatment of psychotic diseases by removing or reducing the psychotic symptoms and thereby also allowing other treatment approaches to be used. However, an urgent need remains for new medications with better efficacy, especially to limit the so-called negative symptoms and cognitive deficits often observed in schizophrenic patients and to reduce the occurrence of side effects.