States with Generic Substitution Requirement, 2003 N=22 states Notes: Data for Maine from A Guide to Prescription Drug Assistance in Maine, October 2004. Available at http://www.maine.gov/dhhs/beas/medbook.htm. Accessed Dec. 6, 2004. Data for Michigan from Elder Prescription Insurance Coverage. Available at http://www.miepic.com/formulary.asp. Accessed Dec. 6, 2004. THE COMMONWEALTH FUND Rizzo, Fox, Trail, and Crystal, State Pharmacy Assistance Programs: A Chartbook—Updated and Revised, January 2007