Deliver total flea protection to your cat or kitten with Advantage II Small Cat. This vet-recommended topical treatment and prevention formula kills adult fleas flea larvae and flea eggs on contact within 12 hours of application - meaning fleas can be eliminated before they bite or lay new eggs. Effectively break the flea life cycle control existing flea and lice infestations and prevent further infestations with one simple application. Advantage II Small Cat flea protection is effective on both indoor and outdoor cats. Your cat should be at least 8 weeks old and weigh 5-9 lbs. to use Advantage II Small Cat.