In August of 2017 I was diagnosed with Stage 4, Gleason 9 with Mets in right hip, right shoulder and L3 vertebrae. Was started on Trelstar after short course of Casodex. In January of 2018 MO added Zytiga and prednisone and switched from Trelstar to Eligard.(cost less).Have had undetectable PSA
since....including test yesterday. My regimen is to take four 250 mg of Zytiga at 8 am followed by by an hour of fasting. I take 2.5 mg of prednisone twice a day. I asked about the suggestions that you take less Zytiga but with food. She said that there is insufficient data available to prove that any protocol other than the one I am on will deliver the correct
therapeutic dose. I mention this because there have been a lot of mentions on this site of patients taking Zytiga with ice cream or eggs
or other food. If you are one of them I would encourage you to first get the blessing of your MO. The cost issue is still there, but is less with the advent of generic abi. The price has dropped from $12000 per month to $3400. If you go to Goodrx.com you can find the price in your area.