Liquid Wormer 2X is not only used to prevent reinfestation of Toxocara canis in puppies and adult dogs, but also for the removal of large roundworms (Toxocara canis and Toxascaris leonina) and hookworms (Ancylostoma caninum and Uncinaria stenocephala). Safe to use on puppies as young as two weeks of age. Administer to new mothers at 2 to 3 weeks after whelping. Butterscotch flavored.