Since you're on Medicare - I'm assuming that's the cost while you're in the donut hole. My mom is on medicare and got some excellent isupplemental nsurance and Rx coverage through AARP. We looked into several programs and it looked like this one was pretty good. She pays very little for her meds now. She's on a ton of different ones (no DMD though) for her MS symptoms. Might be worth looking into. The price for the coverage seemed fairly reasonable to me on a monthly basis.