Drug utilization data is available for covered outpatient drugs paid for by State Medicaid agencies since the start of the Drug Rebate Program. For help in interpreting the data, please refer to the State Drug Utilization Data Specifications. The utilization data you download is raw data in a text file-this allows it to be read by software such as Microsoft EXCEL or ACCESS.
For more information or to order this file, please visit the CMS website: http://www.medicaid.gov/Medicaid-CHIP-Program-Information/By-Topics/Benefits/Prescription-Drugs/Medicaid-Drug-Rebate-Program-Data.html
Available years vary by State.