Starting 2024, my insurance Aetna is switching to SilverScript Medicare Part D for federal retirees. Tymlos, Class 5 drug in Formulary is not covered. Annual cost is $36,000. Since I am already under treatment, I may get Tymlos for the remaining period of 8 months in 2024 at no cost to me. I paln to check with Radius Labs if I would be eligible for assistance. If not I will discontinue after 17 months of treatment which has been proved as beneficial after 12 months of taking the med.