Fenbendazole is an antiparasitic medicine primarily used in veterinary medicine to treat certain intestinal worms and other parasites in animals, including dogs, cats, and livestock, depending on the product and species. It works by disrupting the parasites’ ability to absorb nutrients, helping eliminate them from the animal’s body. The dosage and duration depend on the animal’s species, weight, and health condition. Fenbendazole products intended for animals should only be used under veterinary guidance. It is not approved for routine human use, and claims about treating cancer or other human diseases are not supported by sufficient clinical evidence. Always consult a qualified healthcare professional.