Zentonil is like Sam-E (for humans), also known as Denosyl (for dogs). This is very helpful for the liver as it protects the liver... Zentonil, Sam-E, and Denosyl are all actually s-adenosylmethionine
So they're basically the same thing
This supplement should be given on an empty stomach, so it's usually best to give it to them in the morning at least 1 hr before eating.
Also, another supplement that is extremely beneficial for the liver is milk thistle...It has antioxidants that help protect the liver from further damage and also help repair the parts that already are damaged....
These supplements can only help