Pharmacy Cost Sharing Limits for Individual Exchange Benefit Plans: Actuarial Considerations

This report provides an analysis of potential prescription drug cost sharing benefit design changes on members enrolled in health insurance exchange plans sold on the 2015 insurance marketplace. The following benefit designs were considered:

Prescription drug cost cap of $100, $150, $200, and 20% out of pocket expense.  

http://www.lls.org/sites/default/files/National/USA/Pdf/Milliman%20Report%20on%20Prescription%20Cost%20Sharing%20Limits%20for%20Exchange%20Plans.pdf