I was diagnosed with metastatic prostate cancer last year after bone pain sent me to the ER. I have mets all over my torso and skull. I have been on Lupron since then and through a course of Taxotere. My PSA dropped from 444 ng/mL to 7 ng/mL but started to go back up, so now Xtandi and Xgeva have been added to the mix. My PSA is now down slightly but my testosterone continues to creep toward 50 ng/dL.
Berberine inhibits CYP2C8 and the prescribing information for Xtandi says to avoid inhibiting that cytochrome enzyme.
Has anyone experience taking berberine along with Xtandi?