This medical case series investigates the repurposing of fenbendazole, an affordable and widely available veterinary deworming medication, as a novel anti-cancer therapy. The authors document the treatments and outcomes of three human patients suffering from advanced genitourinary cancers who experienced remarkable tumor shrinkage or complete remission after taking the drug either independently or alongside conventional treatments. By examining how this medication disrupts cancer cell division and survival pathways similarly to established chemotherapy drugs, the report highlights its strong potential safety profile and efficacy. Ultimately, the study concludes that these promising clinical responses provide a compelling foundation for future scientific research and formal clinical trials to explore this drug’s broader applications in human oncology.
