PetArmor 7 Way De-Wormer (Pyrantel Pamoate and Praziquantel) for Medium and Large Dogs treats and controls seven species of worms: two tapeworms (Dipylidium caninum and Taenia pisiformis), two roundworms (Toxocara canis and Toxascaris leonina) and three hookworms (Ancylostoma caninum, Ancylostoma braziliense and Uncinaria stenocephala). This broad spectrum de-wormer comes in chewable tablets, making it easy and convenient to give to your dog.