Delivering generics without regulatory incentives? Empirical evidence from French general practitioners about willingness to prescribe international non-proprietary names.

France presents a unique situation in which the take-off of a generic drug market depends, out of regulatory incentives, on whether physicians choose a prescription method (international non-proprietary names, INN) that can lead to the delivery of these drugs and on whether patients accept them. This paper is aimed at pointing out factors explaining general practitioners' (GPs') willingness to prescribe in INN through data collected from a South-Eastern France representative sample of 600 GPs in March 2002. The main results shed light on the key-role played by GPs' information about drugs and the source which they take it from, by GPs' volume of services and caseloads, and slightly by socio-economic characteristics of patients.

[Willingness to prescribe by international non proprietary names: general practitioners attitudes in South East France in 2002]. / Disposition à prescrire en dénomination commune internationale. Attitudes des médecins libéraux en PACA en 2002.

OBJECTIVES: To evaluate the willingness, reasons and perceived obstacles to prescription by international non-proprietary name (INN) among general practitioners (GPs) in private practice. Method A panel of private GPs practicing in South-eastern France was surveyed twice, 2 months before and 5 months after a new contract between the National Health Insurance system and GP associations (5 June 2002). The panel was constructed with a random sampling approach stratified according to age, sex, and size of the urban unit. RESULTS: Between March-April and November-December 2002, the percentage of GPs willing to prescribe according to INN rose from 76.2% to 89.7%. These physicians reported that their principal reasons for such prescription were the June agreement and concern about the finances of the Health Insurance system. The principal obstacles they mentioned were the complexity of prescription by INN (66%), lack of appropriate information and tools (47%), and patient reticence (41%). CONCLUSION: More effort must be devoted to providing adequate information to patients and GPs. GPs need better training, information, and tools to help transform their willingness into action.