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Research Article| Volume 34, ISSUE 3, P178-187, August 01, 1993

Acute effects of neuroleptics on unmedicated schizophrenic patients and controls

  • Alexander L. Miller
    Correspondence
    Address reprint requests to Dr. Alexander L. Miller, Department of Psychiatry, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, TX 78284-7792.
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA

    Audie L. Murphy Memorial Veterans' Hospital, San Antonio, Texas, USA
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  • James W. Maas
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA
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  • Salvador Contreras
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA

    Audie L. Murphy Memorial Veterans' Hospital, San Antonio, Texas, USA
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  • Ermias Seleshi
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA

    Audie L. Murphy Memorial Veterans' Hospital, San Antonio, Texas, USA
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  • Janet E. True
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA
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  • Charles Bowden
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA
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  • Joseph Castiglioni
    Footnotes
    Affiliations
    Department of Psychiatry, University of Texas Health Science Center at San Antonio, USA
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  • Author Footnotes
    ∗∗ We thank the following for their active participation and assistance in this research: the staff of Unit 1C at Audie Murphy Memorial Veterans Hospital, Valarie Robbins, RN, Donna Irish, RN, Rochelle Javors, Betsy Cuvelier, and Ray Benavides.
    1 Salvador Contreras' present address is School of Medicine, Department of Psychiatry, Texas Tech, University Health Science Center, Lubbock, TX 79430.
    2 Ermias Selshi's present address is One Bratenahl Place, Suite 1012, Bratenahl, Ohio 44108.
    3 Joseph Castiglioni's present address is 511 University Dr., Suite 204, College Station, TX 77840.
DOI:https://doi.org/10.1016/0006-3223(93)90389-U
Acute effects of neuroleptics on unmedicated schizophrenic patients and controls
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      Abstract

      Acute administration of haloperidol (0.2 mg/kg) produced many more side effects in normal controls than in unmedicated schizophrenic patients. Prior to the neuroleptic challenge, both groups were on the peripheral monoamine oxidase inhibitor, debrisoquin, for at least 1 week, in order to enhance the relative contribution of CNS catecholamine metabolites to those measured in both plasma and urine. The patient group had higher plasma levels of methoxyhydroxyphenylglycol (MHPG) and homovanillic acid (HVA) and higher urinary MHPG output than controls, but there were no effects of haloperidol challenge, compared to placebo challenge. In both groups there were significant declines in plasma HVA levels from 8:30 am to 12 noon. These declines were unaffected by the haloperidol challenge. Explanations for the marked differences in behavioral effects of haloperidol on patients and controls include the possibility that dopamine receptor numbers were increased in the brains of the schizophrenic patients.

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      Article info

      Publication history

      Received in revised form: May 14, 1993
      Received: June 25, 1992

      Footnotes

      ☆This study was supported by the National Institutes of Health, Bethesda MD (MH40935 and Clinical Research Center grant MO1 RR01346), by Medical Research Funds from the Department of Veterans Affairs, and by the Hugo A. Auler Professorship of Psychiatry. Hoffman-LaRoche Ltd. of Quebec, Canada kindly supplied debrisoquin tablets.

      Identification

      DOI: https://doi.org/10.1016/0006-3223(93)90389-U

      Copyright

      © 1993 Published by Elsevier Inc.

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