>...several people told me to use flea drops such as Advantage. I was >told to get the kind for small cats. I went to the store today although >I found no Advantage, I did find many other things that are similar. I >bought Hartz brand flea and tick drops for cats and kittens. I would NEVER use any Hartz Mountain product on a ferret, especially a flea preparation. It is not at all the same as Advantage. If you haven't opened it, my personal opinion is that it would be good to take it back for a refund or just throw it out. I'm not saying this lightly. Hartz Mtn does not have a good reputation for ANYTHING, especially flea products. PLEASE don't use it on your ferrets. If you can't find Advantage in a store, you will be able to purchase it from your vet. If it seems expensive, it isn't. You only use a small amount and it lasts one month... it's a small price to pay. Ronnie in Mass. [Posted in FML issue 3137]