Employee knowledge of a managed pharmacy benefit in a large corporation.

Knowledge about prescription drug benefits is necessary for consumers to choose appropriate health benefits plans in a consumer-directed health plan market. The objective of this study was to describe employees' knowledge of their prescription drug benefits. A one-group, cross-sectional survey of full-time university employees with a tiered pharmacy benefit was performed. Correct responses to knowledge questions were described individually and as an aggregate index score. Respondent understanding of pharmacy benefits was low to moderate. Specifically, knowledge of pharmacy benefits was most limited with respect to formulary management, cost sharing, and financial implications of out-of-network use and the selection of a branded or generic medication. Future research should refine methods for assessing knowledge of pharmacy benefits, explore knowledge of pharmacy benefits in diverse samples, and assess the consequences associated with variations in knowledge of prescription drug benefits.