A multiple-drawer medication layout problem in automated dispensing cabinets
Health Care Management Science
Pazour, J. M., Russell. (2012). A multiple-drawer medication layout problem in automated dispensing cabinets. [Journal Article]. Health Care Management Science, 15(4), 339-354. doi: 10.1007/s10729-012-9197-8
In this paper we investigate the problem of locating medications in automated dispensing cabinets (ADCs) to minimize human selection errors. We formulate the multiple-drawer medication layout problem and show that the problem can be formulated as a quadratic assignment problem. As a way to evaluate various medication layouts, we develop a similarity rating for medication pairs. To solve industry-sized problem instances, we develop a heuristic approach. We use hospital ADC transaction data to conduct a computational experiment to test the performance of our developed heuristics, to demonstrate how our approach can aid in ADC design trade-offs, and to illustrate the potential improvements that can be made when applying an analytical process to the multiple-drawer medication layout problem. Finally, we present conclusions and future research directions.