I have taken that. I have been battling stage 4 cancer for the last 5-6 years. I think I've lost count but I think it was 3 rounds of radiation, 4-5 rounds of chemo (5fu), 2 major midline cut surgeries, chopped a chunk of my lung, and 2 other minor surgeries.
They say to begin taking that a couple days before the full moon or new moon, I do not remember.
I still have some sitting on the counter.