[Fifty years old and more patients' attitudes towards and experiences of generic substitution of prescription medicines].

Objective: Assess 50 years old and over patients' attitudes towards and experiences of generic substitution of prescription medicines. A special focus on information on patient attitude to generic drugs provided by their general practitioners (GPs).

Methods: Prospective study of patients in 15 general practices and in 2 retirements home was surveyed using a self-questionnaire.