Under what circumstances would you use tenapanor over more frequently prescribed phosphorus binders for managing hyperphosphatemia in CKD patients?  

Our current experience has been using tenapanor only as an added medication to oral phosphorus binders when further reduction of serum phosphate is required. We have not used tenapanor as the primary medication to control hyperphosphatemia, but this may change in the future as we learn more about th...