Panacure would be the way to go if it is a tape worm.
You might also try to think about how your Lizard got the worm , so you can try to eliminate future probs.
Food source would be the obvious, but it isn't always the obvious! LOL!
Make sure you ask a vet for dosage rates though, I can't remember what it is, it's been so long since I have had to worm anything.
Good luck with it all Danielsan.
Neil