The December Edition of the Series tabulates nationwide Medicaid prescription drug information from the beginning of 2015 through mid-2016.  Some of the key findings are that Medicaid MCOs now pay for more than two-thirds of all Medicaid prescriptions, and that generics accounted for 81% of all Medicaid prescriptions but only 20% of Medicaid pre-rebate Rx expenditures during Q2 2016.