Frontline Wormer Tablets XL Tablets for Dogs is a broad-spectrum wormer that kills all types of intestinal worms commonly found in the UK, roundworms, tapeworms, hookworms and whipworms. It’s meat-flavoured and can be given with or without food, making it easier to give to your pet. This wormer is suitable for dogs and puppies weighing at least 17.5 kg. It is also licensed for use in nursing dogs. Treatment Frequency: For routine treatment, worm your adult dog(s) with Frontline Wormer every three months. In certain circumstances, it may be advised to worm more frequently - higher-risk scenarios, such as if your pet lives with small children or an immunocompromised adult or where your pet has a frequent risk of infection. In these cases, or in case of suspected heavy roundworm infection, we recommend you contact your vet for further advice. Dosage instructions: Dog’s weight: Tablet(s): For dogs 17.5 kg - ½ tablet, for dogs > 17.5 – 35kg - 1 tablet, for dogs > 35 – 52.5kg - 1 ½ tablet, for dogs > 52.5 – 70kg - 2 tablets.