There are about 8 different types of intestinal worm that can infect cats in the UK, & it is not always easy to spot the symptoms. Both Drontal Cat & Drontal Cat XL Tablets will kill every type of intestinal worm your cat is ever likely to get, & both will do so with a single dose, & without having to starve your cat first. The only difference is that Cat XL Tablets are specially formulated for cats 6kg+. To avoid worms reaching maturity & affecting your pet's health, & to reduce public health risks, you should worm your pet regularly. Worming at least every three months with Drontal will reduce this risk, but ask your vet who will be able to evaluate your pet's health & your family's requirements & advise you on a specific worming routine for your pet. A new slim-lined tablet is in the pipeline to improve your cats worming experience even more, by making Drontal easier to digest. Dont forget the flea control! Fleas ar