If anyone has used Azathioprine (Imuran) before with a ferret, can you give me some info on your experience with it? Specifically, did it help? How long did it take before you began to see it helping? Did the ferret then have to stay on it for the rest of its life? I'm using it for the first time now with Dozer and I'm trying to get some ideas. So far it has not helped after his fourth daily dose. I realize that all ferrets are different, but any information is appreciated. Jeff In Loving Memory of Neo, Trinity, Morphy, Possum, Pip, Pop, Sabrina, Minnie Mouse, Hunny, Misty, Frodo, Baggins, and Mr. Parker Caring for Luna, Baby Girl, Dozer, Boomer, and Zoomer [Posted in FML 7241]