Anavar is a 17aa just like Winny or D-bol. If you're taking it in high enough doses I would imagine it would be just about the same in terms of liver toxicity.
Besides dose...What determines a certain orals toxicity?
Now that I think about it at any given dose two different orals should cause the same amount of liver damage since both are going through the same process at the liver to keep bioavailability high, right?
Bump for more info....vets?