To develop the checking system for prescription of injections by pharmacists,a questionnaire of intravenous admixture on nurses of 7 hospitals in Yamaguchi Prefecture was carried out.It became clear that nurses had many problems in the ward which is not clean.It seems dengerous for the nurses to mix many injections,because they must perform with various other works.The nurses strongly expected pharmacists admix injections.The information such as easily incompatible injections,adverse reaction for injections when those are administered, has been required.