Fenbendazole is closely related to mebendazole, a pinworm treatment for children that’s known to be very expensive. A more affordable alternative is fenbendazole, typically sold as a dog dewormer available over the counter. While this medication has veterinary origins, it has also been used successfully by many people.
Emerging Research on Fenbendazole and Artemisinin for Cancer (internalhealingandwellnessmd.com)