I would seriously doubt that BCG would affect the kidney, since it is instilled into and confined to the bladder. Your husband's urologist is no doubt aware of the kidney issues but since this is a concern for you I would have your husband discuss it with the urologist.
Diagnosis 2-08 Small papillary TCC; CIS
BCG; BCG maintenance
Vice-President, American Bladder Cancer Society
My husband ha BCG treatments that ended in Novmber 2018 . Can BCG treatments effect the kidneys? He has had stage 3 kidney disease for many years , I started to worry if the BCG could make it worse.
Another question he has tried 3 diff meds for incontanence . Non really stopped it but did dry out his throat and mouth. So bad he has had to stop taking them. Anyone have any luck with incontince meds?