That's the problem, the warning is buried in two pages of TINY text in the package insert. Not even the vets bother to read it: http://www.revolution4cats.com/docs/pdf/FullInfill.pdf
My favorite flea product is a shampoo by Zodiac called fleatrol. It's a shampoo, and it kills fleas and ticks while on the pet, but it doesn't absorb into their skin like flea repellants do, so when you rinse it off, all the toxic chemicals are GONE. That being said, the label still reads "not for use on sick, weak, or debilitated animals or those under 12 weeks of age. There are new "natural" flea shampoos out there that may be better for weak or young cats/kittens. I use this Zodiac flea shampoo on MYSELF after hiking to kill any ticks I may have picked up on the trail. I feel safe using it on my cats because I use it on myself too. Anything that has bold text warnings that say "wear gloves when applying, and wash thoroughly if contact with skin occurs" are NOT GOOD, because this is stuff you plan to put on your PET'S skin, and LEAVE on there! I mean, think about it, like - DUH! It's the whole double standard we have for humanity verses everything else, what's good for them isn't necessarily what's good for US too. After all, they are JUST animals. (rolling eyes) I'm going to see what I can turn up for use on younger kittens and cats under 2 LBS. Phaewryn http://ucat.us/domesticcatlinks.html Special Needs Cat Resources http://www.iGive.com/html/refer.cfm?causeid=21303 Sign up for iGive and a percentage of your purchases helps save animals!