To Peter, I am a second year veterinary student, and have a good friend who works for Ciba Geigy, the maker of Program. This is a product that has just come on the market for dogs as a once-a-month flea control pill. (the chemical name is Lufenuron) My friend just told me two weeks ago that the product had been approved for cats, and that studies had shown it to be safe for ferrets and effective at a 30mg/kg dose. Since most ferrets are approximately 1 kg, (2.2 lbs.), a single 30mg dose once a month should help to control the flea problems in your house (provided all other pets are on Program also). I have this product for both of my dogs, and the pill for a 25-50 lb dog contains about 200 mg. I know they have a smaller pill than this, but it will probably still need to be broken up accordingly. I would ask your vet to contact Ciba (they should have the #), and ask to speak to Oliver Wilson. You can tell him who referred you, if you wish. This is by no means a plug for Program, but it is the only Lufenuron available, and the only thing like it! We were told about this miracle drug last fall in our parasitlogy course, before it was even available and have been looking for it ever since! To Debbie Riccio, I was discussing ferrets with a classmate who owns a 9 year old black-eyed white. It turns out that this old guy is a Marshall Farms Ferret! I thought you might be interested in this to add to your record books! I also have a 5 year old MF girl who is so healthy she looks like my 1 year old. [Posted in FML issue 1169]