Your pets are family, and PetArmor helps you confidently care for your dog, especially when it comes to large roundworms (Toxocara canis and Toxacaris leonina) and hookworms (Ancylostoma caninum and Uncinaria stenocephala). This liquid wormer for dogs up to 120 lbs. can also be used to prevent the reoccurrence of Toxocara canis infestation in puppies and dogs. PetArmor Sure Shot 2X is easy to administer so you can keep your pup healthy and happy.