• Garrett Crothers, David A Edwards, Jesse M Ehrenfeld, Edward Woo, Lauren McCluggage, and Bob Lobo.
• Jt Comm J Qual Patient Saf. 2019 Jun 1; 45 (6): 416-422.

BackgroundOverprescribing of opioids is a key contributor to the opioid epidemic, which has led to a substantial increase in overdose deaths. The purpose of this study was to evaluate the discontinuation of a dispense quantity automatic calculation function on prescribing of as needed (PRN) opioids.MethodsDuring the implementation of a new electronic health record (EHR), Vanderbilt University Medical Center discontinued functionality that autocalculated the maximum needed dispense quantity for PRN outpatient prescription opioids. This study analyzed prescribing trends for immediate-release hydrocodone- and oxycodone-containing prescriptions 90 days before and after implementation of the new EHR.ResultsA total of 21,323 prescriptions were analyzed in the preintervention group and 22,730 prescriptions in the postintervention group. Discontinuing the autocalculation functionality resulted in a mean decrease of 1.4 dispense units per prescription (58.5 vs. 57.1; p = 0.006) across all patient care areas. The most significant finding was a 10.5% relative decrease in dispense units from inpatient discharge prescriptions (37.2 vs. 33.3; p < 0.001). In the new EHR, PRN oxycodone products defaulted to a dispense quantity of 30, which resulted in a 142.0% (10.0% vs. 24.2%; p < 0.001) increase in oxycodone prescriptions ordered for 30 dispense units but was a net reduction in the doses dispensed per oxycodone prescription.ConclusionThis study suggests that removing the autocalculation functionality reduced the number of opioid units ordered. In addition, using a default dispense quantity for PRN opioid prescriptions may decrease the number of opioid dispense units per prescription.Copyright © 2019 Elsevier Inc. All rights reserved.

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