Public Perception of Generic Medicines and Willingness to Substitute

Generic medicines make up most prescriptions in many health systems, but public confidence in them is uneven and often limits how far substitution policies succeed. This narrative review draws on published surveys, qualitative studies, trials and regulatory documents to describe how lay people view generic products and what shapes their willingness to accept a substitute. It reports no new data. The literature shows broad acceptance when cost savings and professional endorsement are present, alongside a persistent minority who doubt quality. Appearance changes, expectation effects and the attitudes of prescribers and pharmacists all contribute. Most evidence is cross-sectional and self-reported, so behaviour at the counter remains poorly measured.