I have a little one, and soon another, on Mitotane. I understand this *IS* Lysodren. In cases where an adrenal tumor is so far advanced that it cannot be removed, or there is a portion of the tumor that cannot be removed, this drug is used to 'buy some time' for the ferret. In some ferrets it has been effective at "slowing the growth" of the gland and tumor. My understanding is that it is *not* a cure, and does not help in every case. With Rikki, one of the permanent shelter residents here who is on it, I have seen dramatic improvements. Her overall energy has picked up greatly since she started on this medicine. Because the ferrets require such a small amount of the medication, I buy it through a compounding pharmacist. It is mixed in solution. It must be mixed into an oil base solution. My pharmacist was eager to find a "flavor" that Rikki would like. We tried several and she hated all of them. It finally dawned on me that *Ferretone* would work as it is oil base. I asked the pharmacist about it and he said it would work, so we mixed that for her and now she thinks it is a *treat*. You may want to try this. Trish Director, Ferrets First Rescue & Shelter [Posted in FML issue 1719]