Pronefra for Cats and Dogs is for the support of renal function in the case of chronic renal insufficiency. A unique 4 in 1 innovation, Pronefra’s formula is based on the combination of 5 ingredients corresponding to 4 properties. Calcium Carbonate & Magnesium Carbonate – Limits the bioavailability of phosphate. Chitosan – Binds uraemic toxins Polysaccharides of Astragales – Helps maintain normal kidney architecture. Natural Vasoactive Marine Oligopeptides – Helps to maintain balanced blood pressure. Pronefra for Cats and Dogs has been developed to be highly palatable for optimal compliance, allowing a higher consumption rate than other solutions.