First of all I feel sorry about the chronic kidney
problem your wife suffers; nevertheless, medications which you mentions are to control her Blood pressure as well she is on thyroid
medicines. Taking calcium is very important and along with antacid
to reduce phosphate absorption. I would like to know the present createnin level after PD. Did your doctor perform renal biopsy? Did he say she has SLE? You must understand one important thing that the outcome depends upon the etiology as well the current renal status and then only I can suggest the prognosis. Don't carried away with the apparent recovery she is showing right now as renal failure
management is a big commitment.