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Cost of computerized drug interaction screening system

C W Greenlaw

    American Journal of Hospital Pharmacy
    |April 1, 1981
    PubMed
    Summary

    Operating a computerized drug interaction screening system is cost-effective. This Pharmacy Automated Drug Interaction Screening system provides an inexpensive method for detecting and preventing potential drug interactions.

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    Area of Science:

    • Pharmacoeconomics
    • Health Informatics
    • Clinical Pharmacy

    Background:

    • Computerized drug interaction screening systems are crucial for patient safety in hospitals.
    • Evaluating the operational costs of such systems is essential for resource allocation and demonstrating value.

    Purpose of the Study:

    • To determine the total and per-unit costs of operating a computerized drug interaction screening program.
    • To analyze cost-effectiveness based on patient days, drugs dispensed, and interactions detected/prevented.

    Main Methods:

    • Cost data collection during system development (1975) and a one-year study period (June 1978-June 1979).
    • Analysis of total costs categorized by salaries, computer time, database leasing, and supplies.
    • Calculation of cost per patient day, per unit dose drug, and per detected interaction.

    Main Results:

    • The total estimated annual cost of the program was $5,603.02.
    • Salaries constituted the largest expense (63%), followed by computer time (17%) and database leasing (16%).
    • The cost per drug interaction detected and monitored was $0.51; per patient day was $0.42; per unit dose drug was $0.004.

    Conclusions:

    • The Pharmacy Automated Drug Interaction Screening system is an inexpensive method for detecting and preventing drug interactions.
    • The system demonstrates a favorable cost-benefit ratio, particularly when considering the prevention of adverse events.
    • Hospitals can implement such systems cost-effectively to enhance medication safety.

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