In the state of Illinois, we have a program entitled "Illinois Cares RX".  Eligible low income seniors can register to get help with their drug costs and their Medicare Part D premiums.  Go to the Illinois state website   
http://www.illinoiscaresrx.com   for the eligibility requirements and to enroll.  In my Mom's case, Illinois pays her Part D premiums, she has no deductible and she pays $5 for name brand and $2 for generic drugs (30 day supply).  The state covers costs up to $1750 per year.  Then there is a cost sharing plan which, along with Part D keeps her costs low.  She is on 10 prescription drugs with a monthly retail price of more than $500.  Her monthly costs, at the end of the benefit year when cost sharing kicks in are around $100.
Diagnosed 7/03 with Stage 3 Tonsil SCC/2 positive nodes.  7 wks radiation -- 2 rounds chemo (cisplatin) -- 5 months feeding tube.  Still cancer free.