medicare premiums are deductible. since it comes out of your pocket.

Medicare Part D is what you pay Medicare as insurance to cover some or all of the cost of drugs. it is not the cost of drugs themselves that you pay. that cost would be on the monthly statements Medicare sends you. 

any monthly statement that Medicare sends you is not interesting since those are reimbursed usually 100%,

if you have an expensive drug that is not 100% covered, then you might  use that statement.