Sodium cellulose phosphate

Sodium cellulose phosphate is a drug used to treat hypercalcemia and hypercalciuria. It has been used to prevent kidney stones.

This compound is an ion-exchange resin that can not be absorbed by the body. However, it can be used to restore the normal intestinal calcium absorption. When it is taken orally, it binds strongly to calcium and inhibits its absorption into the blood. From there, inhibition is caused due to the lower intraluminal calcium levels, which is typically available for absorption.