Express Scripts to offer a way to lower insulin costs

One of the largest managers of prescription-drug benefits will offer clients the option of limiting how much diabetics owe out-of-pocket each month for their insulin, the latest step by a health-care company under pressure to curb drug costs. Express Scripts, a pharmacy-benefit manager owned by health insurer Cigna Corp. , said Wednesday it will immediately begin offering employers, labor unions and other clients the option to cap at $25 a month the copayments and other out-of-pocket costs that diabetics must pay to fill their insulin prescriptions.