Cazitel Allwormer for dogs treats all species of intesinal worms. Actives are : Febantel, Pyrantel and Praziquantel these are the same ingrediants that are used in Drontal. Cazitel all wormers are flavoured making them easy to give to your dog. They can be safely given to pups that are over 2 weeks of age and they are also safe to give to breeding bitches. By controlling the intestinal worms your dog will be much healthier.