Can Fenbendazole Cure Cancer? According to a case series published in an oncology journal, the answer could be a resounding yes. The case report highlights three cancer patients who were in pretty bad shape. But after taking fenbendazole, they all experienced a complete remission. What Is Fenbendazole, and How Does it Work? Fenbendazole (FBZ) is a medicine originally designed to treat worms and parasites in animals. Its sister drugs, Mebendazole and Albendazole, have had remarkable success treat