You try posting on a cell phone with a 3.1" screen. I was removing the other sentence and the phone lag when I was hitting the backspace, when it stopped it had taken out a few words o the other sentence. It's a pain in the butt to redo.
But it doesn't make much difference. It's not suddenly medicine when it's put on a dog and the formulas for Advantage, Revolution, and regular Frontline are the same. They just change the amount and label on the tube. It's still the same pesticides with the same risks.
And human error is great. How many people are going to mess up the measurements? More than won't.
In addition, often the companies will change the formulas without any warning. So what was "safe" in a dog product for the cats in one package may not be safe the next time one buys it.
(Examples: merial/frontline is about to introduce a new frontline product with a stronger tick protection for dogs only, it will not be safe for cats. Another example is the product Vectra, the dog formula is not at all safe for cats, and the packaging for each is very like the other. Advantix, by Bayer is death to cats, and yet is is now available OTC, sitting on a shelf right next to the advantage )
So, my stand remains that I think it is a terribly dangerous idea to buy flea pesticides made for dogs and put them on cats. Regardless of brand, or whether someone calls them pesticides or (incorrectly as I did) medicine, people should not be putting dog flea prevention products on cats.
And if they do, they should at least be responsible and NOT tell other people to do it.