I've heard of people doing this, but haven't found anyone to tell me the dosage for cats. We feed a colony of 26 cats and most are friendly enough to put flea and tick medicine on them. But, the cost is becoming prohibitive. If we could purchase the dog Revolution and break it down into individual doses for the cats, we could save some money. Please don't give me dosages in milligrams (mg). I have nothing that measures in milligrams and haven't found a formula to make the conversion. Dosages in milliliters is much more helpful.