Public drug information: a telephone-based model for patient education.

As one facet of a larger investigation evaluating the various means by which patients receive information concerning their medications, a telephone-based drug information service was established for selected public use. The purpose was to detail the growth and utilization of the service, characterize the type and importance of the questions asked, and compare the potential utility with that of the USP-DI patient package insert (PPI) in responding to the public's drug information requests. Availability of the toll-free number for the Prescription Drug Information Service (PDIS) was controlled by offering it only to outpatients receiving selected medicines from the pharmacy of a large university-based medical center. The PDIS was operated by clinical pharmacists who participated in completing standardized operational data forms after each drug information call by the public. Of those calls received, 91.7% were not of a serious nature and most commonly dealt with side effects, drug interactions, and drug identification. Fifty percent of first-time calls occurred within two days of the subject's visit to the pharmacy and 23.4% of the total PDIS calls were repeat contacts. Interestingly, 34% of the patients' questions could not have been answered using the standard USP-DI PPI.