Virbantel is for treatment and control of roundworms, hookworms, and tapeworms in dogs. An affordable de-wormer for small dogs and puppies weighting 6-25 lbs. Each chewable contains (30 mg) of pyrantel pamoate and (30 mg) praziquantel. Dosage: Dog Weight Number of Chewables 6-12 lbs 1 12.1-25 2