BackgroundAdverse drug reactions (ADRs) cause significant morbidity and mortality. Improved assessment of ADRs to identify the causal relationship, the severity, and the preventability will aid ADRs prevention or reduce patient burden.ObjectiveThe aim of this study was to develop mobile apps in assisting clinical decision in ADR assessments of causality, severity, and preventability using validated tools. The usability of the apps was assessed.MethodsWe designed mobile apps using validated assessment tools for ADRs. They are the Liverpool ADRs Causality Assessment Tool, Hartwig’s Severity Assessment Scale, and the Modified Schumock and Thronton Preventability Scale. The apps were named “Adverse Drug ReactionCausality,” “Adverse Drug ReactionSeverity,” and “Adverse Drug RxnPreventability.” A survey was conducted using the System Usability Scale (SUS) to assess the usability of the developed apps among health care professionals.ResultsThese apps are available for download through Google Play Store for free since January 2015. From the survey, the mean SUS score was 70.9 based on 26 responses from the pediatric ward of Hospital Ampang, Malaysia.ConclusionsThe developed apps received an overall acceptable usability among health care professionals. The usage of these apps will improve detection, assessment, and avoidance of future ADRs. They will also contribute to future research on ADRs, thus increasing drug safety.

Purpose: To investigate the incidence, characteristics and risk factors of adverse drug reactions (ADRs) in hospitalized children in a Malaysian hospital.

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