@zambezifalls Every Part D insurer has their own formulary. You'd have to check if they cover Tymlos or Forteo (or generic Forteo.) They are certainly going to need a prior authorization form from the doctor.

I had to switch Part D plans two years ago because Wellcare dropped Tymlos from the formulary. You can use medicare.gov to look up plans that cover these meds.

Even with coverage, you'll be on the hook for the Part D OOP cap, which is $2100. That doesn't even cover one month of Tymlos.