Laxative for patient with Kidney Cancer

Does anyone have an algorhythm or the like for selection of laxatives to use for the patient with kidney disease/cancer.

I tried to order senna today for a patient, from a local pharmacy, and they said that senna had been "recalled".

I suggested dulcolax 10mg today with warm prune juice, but no results yet, and miralax isn't an option because it says not for persons with "kidney disease", same thing with mag citrate. patient is NOT interested in an enema of any way shape or form.

any help is greatly appreciated.

linda