You can get milk thistle at the drug store and at big stores like Walmart. Some folks don't care for the Walmart brand, but I saved my liver with it (My liver specialist did not like SamE and was adamently against it, but he had seen studies on milk thistle and he was very supportive of me taking it)
Run, don't walk, and get that boy some milk thistle -- if you haven't all ready -- and give him the people kind. I did not feel it was expensive at all.
Sending hugs for you and healing thoughts for "Pepper."