Liquid Wormer 2X is used to prevent reinfestation of Toxocara canis in puppies and adult dogs and in lactating bitches after whelping. For the removal of large roundworms, (Toxocara canis and Toxascaris leonina) and hookworms, (Ancylostoma caninum and Uncinaria stenocephala) in dogs and puppies. The presence of these parasites should be confirmed by laboratory fecal examination. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.