I am on the Medicare RX plan and in checking other supplemental plans the RX formularies look almost identical to the Medicare Plan. Each state is different in what insurance plans they have and how they pay.
I have to pay cash for my pain meds and one of my other meds they won't cover at all so I pay $300.00 per month just for that one and no we are not wealthy or we would not even be on Medicare.
Good luck; it is in the details where we lose our minds.
Kindly,
Kitt