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Intravenous Naloxone Administration in Schizophrenia and Affective Illness

Glenn C. Davis, William E. Bunney, Jr., Emanuel G. DeFraites, Joel E. Kleinman, Daniel P. van Kammen, Robert M. Post and Richard J. Wyatt
Science
New Series, Vol. 197, No. 4298 (Jul. 1, 1977), pp. 74-77
Stable URL: http://www.jstor.org/stable/1744230
Page Count: 4
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Intravenous Naloxone Administration in Schizophrenia and Affective Illness
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Abstract

Fourteen schizophrenic patients and five patients with affective disorders were given naloxone (0.4 to 10 milligrams) or placebo intravenously in a double-blind fashion. Physicians' ratings of hallucinations, mannerisms and posturing, conceptual disorganization, psychosis, and mood did not change significantly. A single item, unusual thought content, improved significantly on the naloxone day compared to the placebo day. There was no improvement in mood in affectively ill patients rated either by themselves or by physicians. Naloxone did not markedly improve any patient studied, which suggests that the acute blockade of opiate receptors is not associated with global improvement in psychotic symptomatology.

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