Fenze-444 (Fenbendazole 444 mg) is a broad-spectrum anthelmintic (dewormer) used in veterinary medicine. Its primary uses include the treatment and control of various internal parasites in animals: Primary Veterinary Uses Roundworms (Toxocara canis): Commonly used for intestinal parasites in dogs, cats, and livestock. Hookworms (Ancylostoma caninum): Effective against adult and larval stages of hookworms. Whipworms (Trichuris vulpis): One of the few treatments highly effective against whipworm infections. Tapeworms (Taenia species): Specifically treats certain types of tapeworms in dogs. Giardia: Often used off-label by veterinarians to treat Giardia infections in small animals. Lungworms: Used in livestock and some domestic animals to clear respiratory parasites.