Consumer Perceptions of Generic Drug Substitution Practices in the USA

Background: To improve the uptake of generic drugs, understanding consumer perceptions is important. Increased use of generic drugs may help contain escalating healthcare costs. Aim: To evaluate consumer perceptions of generic drug substitution practices by pharmacists in the USA and predict the effect of health and social factors on the use of generic drugs. Method: Surveys were administered to consumers filling prescriptions at 10 community pharmacies in metropolitan Houston, Texas. A 12‐item, 5‐point scale was used to evaluate consumer perceptions. Information on current drugs, purchase behaviour and sociodemographic factors was also requested. Results: 505 surveys were completed (61% response rate). Participants had a slightly positive attitude toward generic drug substitution practices (mean 3.59, SD 1.13). Although participants perceived generic drugs to be safe (68%) and effective (62%), 50% did not consider them to be identical to brand equivalents. Attitude towards generic drugs was the most important predictor of consumer perceptions towards generic drug substitution practices by pharmacists. Conclusion: To improve consumer perceptions of generic drug substitution practices, it is imperative to develop strategies to increase positive attitudes towards generic drugs. Pharmacists can improve consumer perceptions of generic drugs, enhance consumer awareness of potential savings, and help reduce the overall healthcare costs. J Pharm Pract Res 2004; 34: 262–6.