Medication errors in outpatient pharmacies: comparison of an electronic and a paper-based prescription system

Abstract Objectives Medication errors are among the most common medical errors. They can result in mortality, morbidity and additional healthcare costs. Surveillance of medication errors is encouraged to identify gaps in the healthcare system and work on them. This study aimed to compare medication errors in outpatient prescriptions in two hospitals in Jordan: one with a paper-based and one with an electronic prescription system. Methods This was a cross-sectional observational study in two large hospitals in Jordan over a three-month period. Prescribing and dispensing of medicines were screened for medication errors in both centres: 2500 prescriptions were screened in each hospital. Key findings In the hospital with electronic prescriptions, of the 2500 prescriptions screened, 631 medication errors were detected: 231 (36.6%) prescription errors and 400 (63.4%) dispensing errors. In the hospital with paper-based prescriptions, 3714 medication errors were found: 288 (7.8%) prescription errors and 3426 (92.2%) dispensing errors. The most common prescription and dispensing errors in electronic prescriptions were, respectively, prescription of drugs that could have a drug–drug interaction, and omitting to dispense a drug on the prescription. In the paper prescriptions, the most common prescription and dispensing errors were, respectively, inappropriate dose/quantity/frequency or route of administration, and inappropriate and/or inadequate labelling of medication when dispensed, of which there were a large number (2496 (67.2%)). Conclusion This study highlights the effect of the prescription system used by hospitals. Fewer medication errors were found in the electronic system. Healthcare policymakers, professionals and administrators are encouraged to invest in electronic systems to minimize medication errors.