Prescribing new drugs: qualitative study of influences on consultants and general practitioners |
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Authors: | Jones M I Greenfield S M Bradley C P |
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Institution: | Department of Primary Care and General Practice, Medical School, University of Birmingham, Birmingham B15 2TT. M.I.Jones@bham.ac.uk |
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Abstract: | ObjectiveTo explore consultants'' and general practitioners'' perceptions of the factors that influence their decisions to introduce new drugs into their clinical practice.DesignQualitative study using semistructured interviews. Monitoring of hospital and general practice prescribing data for eight new drugs.SettingTeaching hospital and nearby general hospital plus general practices in Birmingham.Participants38 consultants and 56 general practitioners who regularly referred to the teaching hospital.ResultsConsultants usually prescribed new drugs only in their specialty, used few new drugs, and used scientific evidence to inform their decisions. General practitioners generally prescribed more new drugs and for a wider range of conditions, but their approach varied considerably both between general practitioners and between drugs for the same general practitioner. Drug company representatives were an important source of information for general practitioners. Prescribing data were consistent with statements made by respondents.ConclusionsThe factors influencing the introduction of new drugs, particularly in primary care, are more multiple and complex than suggested by early theories of drug innovation. Early experience of using a new drug seems to strongly influence future use. What is already known on this topicUK studies show that use of new drugs by general practitioners is influenced by consultants, the nature of the drug, and perceived riskWhat this study addsConsultants generally introduced fewer drugs than general practitioners, usually within their specialtyDecisions were said to be based mainly on the evidence from the scientific literature and meetingsGeneral practitioners prescribed more new drugs and the basis of decisions was more variedDoctors'' interpretations of using a new drug were not consistent |
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