Did you read this article I posted the link to?
When liver damage has been determined by a urine bile acid test or a pre- and post-meal bile acid test or chemistry panels, which show elevated values of Alk Phos, Alt (SGPT), and GGT, our Guardian Angels have had great success in reversing liver damage by doing three things:
1. Reducing the amount of Phenobarbital on a program determined by your vet or Dr. Dodds.
2. Feeding the liver cleansing diet
3. Adding Milk Thistle to the diet Reducing the risk of liver disease
I noticed you are in New Jersey. I know there isn't a vet school in your state, but I there are some excellent internal medicine specialists. I have heard wonderful things about Red Bank:
Red Bank Veterinary Hospital