5- In combination with phosphate to treat some metabolic diseases as Fanconi syndrome and familial hypophosphatemia.
is a disorder in which the proximal tubular function of the kidney is impaired, resulting in decreased reabsorption of electrolytes and nutrients back into the bloodstream. Compounds involved include glucose, amino acids, uric acid, phosphate and bicarbonate.
is a rare inherited disorder characterized by impaired transport of phosphate and altered vitamin-D metabolism in the kidneys. In addition, calcium and phosphate are not absorbed properly in the intestines, which can lead to softening of bones.