Based on the data analysis of the AMP-findings of 78 schizophrenic patients from 4 clinical trials, the following effects of Bromperidol could be demonstrated: a strong antipsychotic effect with an early onset (after 3 days), little sedation, good improvement of accompanying depressive symptoms, little autonomic but rather strong cxtrapyramidal side effects. No differences between the effects in men and women were noticed. Differences between the patient populations of two hospitals were small in comparison to the differences between the patients with catatonic and paranoid schizophrenia. In catatonic patients, Bromperidol had a stronger antipsychotic effect and showed an earlier onset of its effects.