Good info:
Pet Owner's Crash Course in Canine Cushing's Disease
Okay.... interestingly enough, Ketaconazole is used to treat Cushings in some cases.... same class of drug as fluconozole... which suppress hormone production (a side effect).
I can't find the why's or wherefore's, maybe a gut feeling, but reducing the ALKP seems to be a priority and it seems the Fluconozole may have been responsible for doing that.