Remoxipride, a novel substituted benzamide, was given for 4 weeks to 18 florid schizophrenics in an open study. The mental state of the majority improved as measured by the Brief Psychiatric Rating Scale. Remoxipride itself did not appear to cause troublesome extrapyramidal effects. There were no significant adverse effects on the cardiovascular system and no significant abnormalities in laboratory tests. These results suggest that remoxipride has antipsychotic effects, and that this should be tested in controlled clinical trials.