Frontline TopSpot for Dogs on my CATS??

Is this going to work? I think it is~ but before I put it on my cats let me run it by y'all and see if I'm missing something.

So~ I went out to buy more flea/tick stuff yesterday~ a friend showed me that Frontline Top Spot for CATS had the exact same active ingrediant of "fipronil" in the exact same percentage at 9.7% as the Frontline TopSpot for dogs has. Both products state that the other 90.3% of the product is "Inert Ingrediants". As far as we can tell~ the ONLY difference between the Frontline TopSpot for Dogs and for Cats was the amount contained in the little applicators at 0.136 fl oz for dogs and 0.017 fl oz for cats. But both products COST $45..............

So~ IF I'm doing the math correctly~ AND I'm not missing something scary (I already checked~ Frontline TopSpot is NOT the product that is dangerous for cats to be around your dog when wet)...........then............

For $45 I can purchase 3 individually packaged doses of Frontline for Cats~

Or for $45 I can purchase 3 individually packaged doses of Frontline for Dogs~ use a sryinge to extract each individual packages into 8 cat size doses (yeah~ I think it's 8 doses in each one! 0.136 divided by 0.017 equals 8). So infact I would wind up with 24 cat size doses for the same $45 I would pay for 3 prepackaged cat sized doses?

Am I missing something?

You can use Frontline for dogs on cats. Just measure 0.5 mls and apply it on. It's what I do.

Thanks~ I actually got a lot of responses on a homesteading board I also post on. A lot of those people have been doing this for years. So last night I treated all the cats for about $15 when it cost me $90 to treat the same cats last month when I was buying individual treatments for them. Hopefully it works~ I really can't see why it won't~ and the money to treat all of our animals was becoming prohibitive!