You only paid $60 for a 3 month supply with a MEDICARE plan?!?! What state? Usually formulary changes don't take place until Jan 1, and in my state V is still T4 in 2018, I'm still going to have to pay $104/mo for V at CVS (Humana Part D plan). Donut hole shouldn't have anything to do with it - even if you come out the other side you still usually pay 50% of cost or something like that - and if you were in the hole you'd have paid more than $100/mo.
You on SS too? Nice 2% COLA for 2018 got almost entirely eaten up by increase in Part A/B cost - leftover/mo is enough to buy a case of cheap beer - gee, thanks for the bump in benefits!