The one that my vet uses is Strongid-T (Pyrantel pamoate) which is a broad spectrum dewormer. It is supposed to work against roundworms and hookworms. Just call your vet and I'm sure that if your kitty has worms, he/she will prescribe something for you.
Our vets prescribe something called Flubenol P (flubendazol), which supposedly covers all types of worms. It's produced by a small European company, so may not be available in your area.