Abstract
A support system for prescriptions was added to the Gifu University Hospital prescription ordering system in July 1994. The information on other prescriptions for patientswho were consulting multiple clinical departments in our hospital was printed on the prescription sheet to support the dispensing process. These prescriptions are indicated on a computer display using the printed information (e.g., department and prescription date). Drug duplications and drug interactions including the medications which were prescribed by other department are subsequently checked by pharmacists.The rate of prescriptions on drug duplications decreased significantly from 14.0% in June to 2.6% in October (p<0.05) since the support system was introduced. The rate of prescriptions generating drug interactions did not significantly decrease. However, some doctors modified the medication order or carefully maintained the medication order to prevent the occurrence of undesirable drug interactions as a result of the pharmacist's advice. These findings suggest that this support system is useful for preventing overdosing and adverse reactions that may be induced by drug duplications or drug interactions
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