Objective: We aimed to integrate drug information (DI) documents universally necessary in most hospitals in Japan and share the DI documents nationwide.  For this purpose, we planned to collect details (e.g., types of document, contents, sources of information used for preparing documents) regarding the DI documents prepared by the DI service section of each hospital.
Methods: (1) Preliminary research: We searched Ichushi-Web (from January 1977 to December 2015) for cases in which DI documents were prepared by the DI service section of each hospital.  (2) Questionnaire survey: We conducted the survey in DI section of 300 hospitals in Japan that were selected randomly.  We asked the types of DI documents they have, sources of information used for preparing documents, and time needed for preparing documents.
Results: (1) Forty titles, including those related to preoperative medication management, simple suspension methods of tablets, and list of dosing with renal impairment, were found.  (2) In total, 148 hospitals (49.3%) responded to the survey.  The main contents were as follows: preoperative medication management (130), the influence of a tube and a filter give to stability of injection medicine (67), list of high-risk medicines (54), suspension or porphyrization information on tablets (37), and others.  The source of information used for preparing these documents was common in several hospitals.
Conclusion: It was confirmed that similar DI documents are prepared by several DI sections of hospitals and some sources of drug information are common.

Objective: When responding to questions regarding drug-drug interaction by the medical staff of our hospital, pharmacists previously collected information using some drug databases from Japan and the United States.  The aim of this study was to construct a search system for interaction information using drug databases from both Japan and the United States for streamlining questions and answers regarding drug-drug interaction.
Methods: Using the drug databases from Japan and the United States, we collected information on the interaction pertaining to drugs prescribed at Kobe University Hospital.  This information was further assessed for consistency.  Furthermore, we constructed an original search system for interaction information for streamlining questions and answers regarding drug-drug interaction.
Results: The difference between information obtained from the databases from Japan and the United States was apparent.  Thus, we concluded that it was necessary to obtain interaction information via a database search that included information from both the countries.  Therefore, our original interaction search system was reconstructed with interaction information collected using databases from both the countries.  We compared the response to questions regarding the previous and present methods using our original search system for interaction information; the time required to obtain the responses was 5.89 and 3.09 min, respectively, and it took lesser time for providing responses than the previous method.
Conclusion: We evaluated the usefulness of the original search system for interaction information.  We found that the original system provides a more rapid response to questions compared with the previous method.  We are considering a further upgrade and update for the original system by adding information on drugs not prescribed by our hospital.