My 2 year old Golden Retriever has some type of progressive fibrosis of his kidneys. His creatinine was 8.0 and his hematocrit was 17.1 about 3 weeks ago. He continues to lose weight but runs about at home and chases us etc.. Currently he receives only Vitamins, prophylactic Ciprofloxacin and Pepcid and Amphogel. What can we do???