I think that milk thistle and dandelion root are supposed to be good for the liver. I bought some and made a tea out of it for my dogs and cats when they were on certain meds...
Riley is on daily prednisone and takes Denamarin to protect her liver. I believe though that it is only available with a prescription for your vet. So far so good for us - she gets her liver enzymes checked whenever she has a neurologist appt which is about every four months.
What with Bailey and Holly both being on daily meds it got me thinking of the effects on their livers. Is there any supplements I could be giving them to aid their liver activity?