8 weeks. Follow dose instructions for your kitten and using the Advantage II for the first application. TOPICAL.
It's 8 weeks for a kitten!
not positive but I think six weeks I don't think there's a weight limit however if you have a flea problem and the kittens are too young to treat for fleas give them a bath with blue Dawn who Don will kill the fleas and it's safe for kittens that I can guarantee I've done it a dozen times hope this help
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