Volume 46, Issue 3 pp. 733-739
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Usefulness of Antiparkinsonian Drugs during Neuroleptic Treatment and the Effect of Clonazepam on Akathisia and Parkinsonism Occurred after Antiparkinsonian Drug Withdrawal: A Double-Blind Study

Jun Horiguchi M.D, Ph.D

Corresponding Author

Jun Horiguchi M.D, Ph.D

Department of Neuropsychiatry, Ehime University School of Medicine, Ehime

Department of Neuropsychiatry, Ehime University School of Medicine, Shitsukawa, Shigenobu-cho, Onsen-gun, Ehime 791–02, Japan.Search for more papers by this author
Ohichi Nishimatsu M.D

Ohichi Nishimatsu M.D

Department of Neuropsychiatry, Ehime University School of Medicine, Ehime

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First published: September 1992
Citations: 4

Abstract

Abstract: Antiparkinsonian drugs used for 117: chronic schizophrenic patients receiving long-term neuroleptic treatment were withdrawn. Seventy-eight (66.7%) of the 117: patients were without akathisia and/or parkinsonism at least for 6: weeks after the antiparkinsodan drug withdrawal. A double-blind study of clonazepam was carried out for 22: patients and clonazepam was effective on 8: patients (100%) with akathisia and on 3: patients (75%) with parkinsonism. The authors conclude that these data support the need for discontinuous use of antiparkinsonian medication during the long-term neuroleptic therapy of chronic schzophrenic patients and the effectiveness of clonazepam in managing antiparkinsonian drug withdrawal-induced akathisia and parkinsonism.

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