It may block glucose uptake in cancer cells by downregulating GLUT transporters , effectively "starving" the tumor.

However, the primary research paper often cited by that community regarding the drug's potential anti-cancer mechanisms is:

Research indicating that the drug may target cancer stem cells, which are often resistant to standard treatments. Fenbendazole Exhibits Antitumor Activity Against Cervical Cancer .

The American Cancer Society and other health authorities emphasize that while laboratory studies exist, Fenbendazole is not FDA-approved for human use, and large-scale clinical trials are still needed to confirm its safety and efficacy in people.

An overview of the pharmacokinetics and promising biological activities for cancer therapy in both humans and animals. Oral Fenbendazole for Cancer Therapy .