You are mistaken. The kidneys do not eliminate toxins'. That is the job of the liver. The kidney merely limits the amonts of different materials such as water, vit C, etc. allowed to remain in the blood. Urine is made from our blood. It will kill bacteria and virus. It is entirely safe to drink.
Babies spend 9 months submerged in it before birth. In the old country women use urine on their face to improve complexion. Mahatma Gandhi drank his own urine for years. It is probably why he was able to fast for very long periods. It would have furnished him with some sustenance while going without food. Read Martha Christy's book on the subject. It is very convincing. Your life could depend on it. If not now, maybe someday. Be well ---- JD