Objectives. To assess the impact of multitiered copayments on the cost and use of
prescription drugs among Medicare beneficiaries. Data Sources. Marketscan 2002 Medicare …

Objective: To decompose the overall effect of multitiered formularies on drug utilization and
spending into the following 2 observed effects on consumer behavior: first, higher …

Background: Previous research has suggested that 3-tier prescription drug copayment
systems produce drug cost savings without affecting the use of other medical services during …

BACKGROUND: Incentive-based prescription drug cost sharing can encourage seniors to
use generic medications. Little information exists about prescription drug cost sharing and …

We examined 2001 prescription drug claims for a range of employer-based retiree plans
administered by a national pharmacy benefit management firm, to understand how use and …

OBJECTIVE: To evaluate the impact of 3-tier (copayment) pharmacy benefit structures on
medication utilization behavior. METHODS: A pretest-posttest quasi-experimental design …

Objectives: To examine the impact of incentive formularies on prescription drug spending
shifts in formulary compliance, use of generic medications, and mail-order fulfillment in the …

Materials and methods. Longitudinal logistic regression analyses of pharmacy claims from
1998 and 1999 comparing concurrent groups that were or were not exposed to tiered …

Background. In response to rising prescription drug costs, plan sponsors are increasingly
implementing three-tiered pharmacy benefits. Objective. This study examined the effect of a …

Objectives: To examine patient attitudes related to formulary medications and medication-
related decision making in multitier copayment prescription drug plans. Study Design: A …