My kitten licked some Advantage off my other cat. What should I do?

[Sinshalai]

I heard Frontline was non toxic but this was Advantage.

I was going to separate them, but as I was applying the medicine to the third and final cat my 4 month old kitten jumped on one of my older cats and bit her on the scruff right where I applied the flea control.

Needless to say, she ran off flicking her tongue around like a dog with peanut butter in its mouth. I gave her some wet food to try to help with hydration but it's very late. Do I need to call an emergency vet?

No she'll be fine I should think

If you're at all worried, you really need to ask a vet

Call the manufacturer, they’ll provide you with advice on what to do. They’re the best contact as they have all the tox data.