Originally Posted by
krazyaboutkatz
I've never heard this before and I've been using advantage(regular advantage not advantage multi) on all of my cats for years. I actually buy the large dog advantage and then I measure out what I need on each cat. This way I save a lot of money. My former vet actually recommended this to me to save me some money. It's the same stuff that you use on cats but it just comes in a larger doseage so you have to know how much your animal weighs and then you measure it out according to weight. I usually buy mine online.
If you have 2 dogs that are different weights then you can buy a larger dog one and then measure out what you need each time. I put it in a testube with a lid and then I use a syringe that I premark with some tape. I've used this every month on my cats for years without any problems. On my cats I make sure to squirt it out in about 3-4 spots not all in one spot so it's less irritating to their skin. Good luck.