Analysis of Questionnaire on Appearance Similarity of PTP Sheets

Akira Izumiya, Yoshitaka Ootsuki, Masaomi Kimura, Michiko Ohkura, Toshio Takaike, Fumito Tsuchiya

Research output: Chapter in Book/Report/Conference proceedingChapter


In recent years in Japan, an increasing number of malpractice cases have been reported, more than half of which are related to drug labels or packages [1]. The Japanese Ministry of Health, Labor and Welfare is now using a similar name search engine to ban new names for medicines that resemble existing names. However, no such action has addressed the issue of appearance similarity. We carried out a questionnaire evaluation with 412 pharmacists. They looked at images of imaginary PTP sheets and then replied with the names of real medicines having PTP sheets that they thought resembled the displayed sheets in appearance. This article presents our analysis of the results.

Original languageEnglish
Title of host publicationAdvances in Human Factors and Ergonomics in Healthcare
PublisherCRC Press
Number of pages11
ISBN (Electronic)9781439834985
ISBN (Print)9781138113312
Publication statusPublished - 2010 Jan 1


  • Appearance similarity
  • Evaluation method
  • Medical accident
  • PTP sheet

ASJC Scopus subject areas

  • Engineering(all)


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