Beaphar One Dose Dog Wormer is an effective treatment for the routine control of common roundworms and tapeworms in dogs. These tablets contain nitroscanate and are designed for easy administration with food. This product is a UK authorised veterinary medicine with vet strength efficacy. Each pack contains 4 tablets and is suitable for large dogs aged 6 months and over, weighing between 6kg and 40kg. The dosage varies depending on the dog's weight: 1 tablet for 6.1-10kg, 2 tablets for 10.1-20kg, 3 tablets for 20.1-30kg, and 4 tablets for 30.1-40kg. Please read all instructions before use. All measurements are manufacturer stated.