Hemodialysis and schizophrenia: a double-blind study.

Partial or total remission of schizophrenic symptoms after exchange transfusion or hemodialysis have been reported in the literature. Although the results of these reports are encouraging, they have not been confirmed by controlled studies. We have conducted a double-blind placebo-controlled study to evaluate the effect of hemodialysis on chronic schizophrenia. Our data seem to indicate that some schizophrenic symptoms improve after hemodialyses.