Efficacy of an adverse drug reaction electronic reporting system integrated into a hospital information system.

Background: Adverse drug reaction (ADR) spontaneous reporting is the primary method of postmarketing drug surveillance; although it is an important part of postmarketing drug surveillance, it is underused. Before 2004, almost no ADRs were reported in our 400-bed hospital. As an electronic hospital information system was available in our hospital, we developed a tool (ADR-RS-IHIS) for ADR reporting integrated into the hospital information system to facilitate reporting through easy use, automatic input of certain information, increased accessibility, real-time review, and intervention.