Overview of Pyrantel Pamoate (Nemex®, Strongid® T) for Canines and Felines. 1  Pyrantel Pamoate, commonly known as Nemex® or Strongid® T, is used to treat parasites such as roundworms and hookworms in dogs and cats. 2  Most puppies and kittens are born with internal parasites or worms derived from their mother.