Lisa S., I am sorry to hear that your ferret is diabetic. You should be able to find Humulin-N (NPH) insulin at your local pharmacy, behind the counter. As for the injections: Ferrets have thick, tough skin and can hardly feel them. The needles are so fine that even humans can't feel them! You're going to want to watch to make sure that your ferret is getting enough food during the day to ensure that he will not have an insulin reaction during the night. As with diabetic humans, if they don't get enough food during the day and they have taken their insulin, they can get sick during the night. Your Vet should provide you with an insulin schedule and feeding schedule, if you follow that, things should be fine. Sometimes if the ferret's pancreas is making a little bit of insulin, the diabetes can be controlled with diet alone. It really is different for each ferret. Make sure that your ferret doesn't start to "stare off into space" during playtime. If he doesn't have enough to eat before or after he plays, he can get really sleepy acting. You may even have to change the Vet's feeding schedule to something that works best for you and your ferret after a while. If you feel that something isn't right, call the vet or come to us FMLers! I can relate to your ferret. I have been diabetic for 13 out of my 15 years. Please let me know how things turn out. Best wishes for you and your ferret! Meghan Seven Star Ferrets - http://www.geocities.com/Heartland/Ridge/3808/ Sabrina, Sebastian, Sylvester, Sasha, Sadie, Sir Phoenix, & Skylar. "What did you guys do with my socks????" [Posted in FML issue 2469]