Agnes,
My brother is battling stage IV colon cancer a very aggressive type. I have ordered the herbs for the 21 day cleanse from Dr. Clarke. However, my brother believes in chemo so we are going to do the 21 day cleanse in between the chemo treatments. I am concerned about possible reactions between the chemo and the herbs. For example, he the literature advised Oncologists to watch Renal function while administering this chemo drug. I have the kidney cleanse herbs but is there any chance of a toxic build up in the kidneys from these herebs?? Have you ever heard anyone having complications with renal function from the kidney cleanse herbs?