According to statehealthfacts.org, an estimated 3.8 billion prescriptions were filled in the United States in 2011, costing Americans more than $271 billion. When filling at a military pharmacy, patients receive 90-day prescriptions with no co-pay, and when using a military mail-order pharmacy, co-pays can be between $0 and $43. When TRICARE is used for the same prescriptions at retail pharmacies, co-pays can range from $15 to $132. (U.S. Air Force graphic by Airman 1st Class R. Alex Durbin/ Courtesy photo/Released)