I've only ever used Panacur 10% liquid and I use it on all of our own family cats as well as the kittens. Have never had a "worm" problem, but by the same token, we don't feed raw here, we've also not had a flea problem etc.
I like the Panacur, only problem is the mess it makes but I am extremely proud of the fact that I can worm 20 cats with Panacur in under 20 minutes
(that's my current personal worming record lol)