@kzeiss My husband recently had gall bladder surgery, and is a kidney transplant recipient. So, I understand your concern. Have you been able to check in with the internist who did the surgery? What are the liver enzymes showing in the bloodwork? Is his stool regular color, and not grayish tint [meaning possible liver/bile issue]. Possible scar tissue concern from the gall bladder surgery? Just thinking of different possibilities here....
Ginger