A survey of drug utilization in psychiatric hospitals in Japan: comparison of 1973, 1979, and 1993

K. Yamauchi, K. Baba, Naoki Ikegami, Y. Ono, H. Miyaoka, K. Kamijima

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Abstract

This paper investigated the trend in prescription patterns in the treatment of psychiatric inpatients using a database of our 1993 survey as well as reports of surveys conducted by Ito et al. in 1973 and 1979. To make the database of our survey comparable with surveys in 1973 and 1979, we extracted and analyzed 1,164 cases which met the criteria of Ito's survey, requiring that patients were diagnosed as having schizophrenia and were hospitalized for two years or longer. The results were as follows: 1) The most common number of different drugs per patient increased from 4 in 1973 and 1979 to 8 in 1993. That of psychotropics increased from 2 to 5. That of neuroleptics increased from 2 to 3. 2) The most commonly prescribed neuroleptics were haloperidol followed by levomepromazine and chlorpromazine. While the top three neuroleptics had not changed, the mean daily dose of haloperidol rose from 8.4 mg in 1979 to 15.3 mg in 1993.

Original languageEnglish
Pages (from-to)640-652
Number of pages13
JournalSeishin shinkeigaku zasshi = Psychiatria et neurologia Japonica
Volume102
Issue number7
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Medicine(all)

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