Drug-drug interactions in an intensive care unit and comparison of updates in two databases.

Objective: Critically ill patients are at increased risk of drug-drug interactions  but their prevalence and clinical relevance remains unclear. The prevalence of  potential drug-drug interactions in an intensive care unit according to  Micromedex Drug-Reax® and Lexi-Interact® databases was studied and the  concordance between the two databases was assessed. In addition, drug-drug  interactions detected in 2013 were compared with those identified in 2018 to  determine updates between these years.