Pielotax (kidney) contains a complex or low-molecular peptides, isolated from kidneys of young calves aged up to a year. It normalises the kidney metabolism and thus may help improve kidney function. Pielotax has been studied for gouty nephropathy and renal failure. In the study of a case of renal failure the nephrologist classified the results of the treatment at "spontaneous recovery" and told the patient "there is no need for the patient to revisit him for a year".