A new study by researchers at Express Scripts has confirmed a connection between the copay differentials for brand and generic drugs set by drug plans and the willingness of patients to use lower-cost generic medicines. According to the study, plans with a generic versus brand copayment differential of $21 or more used generic drugs at a rate 5.2% higher than those with a differential of $5 or less.
?The findings in this study show that getting plan design right pays off, given that a 1% increase in generic use results in an estimated 1.6% decrease in total drug-plan costs,? a spokesman for the researchers said. The study, published in the June 2007 issue of the American Journal of Managed Care, also found that plans with $16 to $20 differentials used generic drugs at rates that were 2.9% higher than those with the lowest differential between generic and brand copayments.
One study linked multiple pregnancies to an increased risk of developing atrial fibrillation later in life, and another investigated the association between premature delivery and cardiovascular disease.
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