Happy to pass on our experience at FACT over the years with ferret nicotine withdrawal (including that of our personal ferrets when I finally quit over 12 years ago). Worst we have seen happen with ferrets of any age is that they get a bit testy for a couple of days. Most show no effect (other than probable [in my mind anyway!] relief that they can breathe!). We actually have had some who came in from smokers who complained the ferrets were nippers or biters. And sure enough, SURPRISE!! they STOPPED nipping/biting when they weren't being picked up by someone with nicotine residue on their fingers. :) Nicotine withdrawal passes fairly quickly even in humans. The worst part is psychological. And unless you spot her chewing her nails :) I'd not put her on any nicotine substitute or tobacco of ANY kind. It's toxic stuff and not meant to be ingested. Good luck with her and glad she's found a nice, new, smokeless home! Ann Gruden Ferret Association of CT - FACT [Posted in FML issue 5139]