Hope this will help...

1. "The first condition of shivambu treatment is that one should commence U.T. after relinquishing all medicines, non-vegetarian food and intoxicating things like bidi, cigarette, tobacco, liquor etc. However, there are two exceptions. Allopathic medicines with shivambu sometimes create complications, while ayurvedic and homoeopathic medicines go well with it. Patients suffering from heart trouble, and diabetes cannot discontinue medicines suddenly, As such they may drink urine along with their usual medicines and if they realize that urine suits them, then they can reduce the dose of medicines in a phased manner. Thus in a couple of months they can get rid of the medicines completely etc."

from: http://www.indiangyan.com/books/therapybooks/Uropathy/instructions_...

2.  "Urine can be massaged topically for the most chronic and stubborn skin problems, such as acne, eczema, psoriasis, ringworm, sores, fungal infections, insect bites, wounds, burns and even gangrene. Internally, the therapy is said to be effective in treating AIDS (since the AIDS antibodies are found in urine) as well as cancer, chronic fatigue syndrome, anaemia, all sorts of urinary diseases, weight loss, colds and flus, candida, diabetes, digestive problems, jaundice and more... Why does urine therapy seem ineffective in some cases? There are times when there is a chronic deficiency of one or several minerals, and in such cases there is none of that mineral in the urine; therefore, although the general health and other metabolic imbalances in that person improve, that particular problem may remain the same. For instance, a diabetic person may need to take chromium for the cells to use blood sugar and vanadium to produce insulin. These supplements may be necessary to eradicate diabetes or any other blood sugar problem that is not correctable with self-urine therapy." 

from: http://www.satori-5.co.uk/downloads/dlf_051.doc

3. "How come urine appears to be ineffective for some problems? Sometimes health problems are associated with mineral deficiencies and they are corrected when you recycle and reuse traces of the specific mineral found in urine. But there are times when there is a chronic deficiency of one or several minerals. In this cases there is none of that mineral in your urine, therefore the problem remains the same, although 20 other conditions may improve. A diabetic person, for example, may need to take chromium for the cells to use blood sugar and vanadium to produce insulin. These supplements may be necessary to eradicate diabetes or any other sugar problem that did not improve with Uropathy."

from: http://users.erols.com/martinlara/questns.html