I do not know of any reason to suspect an implant for this. There does not seem to be any mechanism for the implants to reduce corticosteroid production. They work in a way that reduces or prevents the hyperhormonal problem which is thoroughly different. There does not seem to be any reason to kick yourself about the implant, but in the future never give a medication without the vet first okaying it. If the ferret had diabetes that could have been a fatal move. Best to avoid that error in the future. There are multiple causes of sudden death. A/V Node Block in thought to be induced by diabetes. 40 is an extreme number so pancreatic carcinoma or pancreatic lymphoma is a possibility with a sudden onset that is extreme. Are you sure the feeding tube was properly placed? That is not a typical thing to do with a ferret, BTW. There are other possibilities, but for the Addisons you are worried about I can't see a mechanism. For Addisons there are steroids like Prednisolone given for fluid management, and meds like Percorten or Fludrocort/Florinef given for electrolyte balance, but, again, the implant should not alter corticosteroid production by the adrenals because it does not have an overall suppressing or atrophying effect on the adrenals. (A past med, Lysodren, did do that at times, BTW, and that med is typically avoided these days. It has a pile of problems.) The other ferret who improved with just short term Prednisolone probably did have some temporary adrenal corticosteroid reduction but not enough of a reduction of enough of those adrenal products to need both types of meds. If there was a debulking of one and removal of the other then there was enough adrenal tissue left behind to produce those essential products. If one was removed then the other was probably examined and might have been temporarily inflamed, leading to that short problem. Sukie (not a vet) Recommended ferret health links: http://pets.groups.yahoo.com/group/ferrethealth/ http://ferrethealth.org/archive/ http://www.afip.org/ferrets/index.html http://www.miamiferret.org/ http://www.ferrethealth.msu.edu/ http://www.ferretcongress.org/ http://www.trifl.org/index.shtml http://homepage.mac.com/sukie/sukiesferretlinks.html all ferret topics: http://listserv.ferretmailinglist.org/archives/ferret-search.html "All hail the procrastinators for they shall rule the world tomorrow." (2010, Steve Crandall) On change for its own sake: "You can go really fast if you just jump off the cliff." (2010, Steve Crandall) [Posted in FML 7038]