I have been instructed to stop Zytiga and prednisone and waiting for liver function to recover. Its been 2 weeks and waiting for next retest. I've been on Zytiga and prednisone and Lupron for 4 months before stopping. The side effects before stopping were tolerable. I'm now experiencing light headed, drowsy, fatigue and wondering if coming off 5 mg of prednisone is the culprit. I'm looking into milk thistle and dandelion. Should I have stayed on the prednisone until liver function recovers?