usually it takes 2 yrs to get MediCare after one goes on Soc. Sec. Retirement (or Disability, but that usually takes 2 yrs to get on anyway). many Supplemental Medical Plans, such as AARP can be researched to see if they pay for specific meds, and how much of the cost they will pay. also, once you select a Plan and Enroll, you can only change at the end of the year (Oct. or Nov. ??) talk to your pharmacist about how to find a good Plan for you.
best wishes~