Though I have read many good reports about urine therapy, I must admit that I remain a bit skeptical. Certainly I would not rely on urine therapy to try to conquer leukemia or any other form of cancer. Wheatgrass I like a lot, though I would not rely on it either as a standalone treatment. If it were me, I would look at a comprehensive overall anti-cancer protocol such as the one I suggest:
I will add that the above protocol features oleander as a centerpiece, but also contains much, much more in the way of cancer-fighting herbs and other items, lifestyle advice, stress management, diet, nutrition, etc. Oleander has had some very good success against leukemia.