Written based on 2 research studies on PubMed, searched on 2026. nov. 11..
The claim
Posts online say that fenbendazole helps with bladder cancer.
Where research stands
We found 2 published papers on fenbendazole and bladder cancer. They were published between 2024 and 2026. None of them is a study in people. 1 was a study in animals, and 1 was only in cells in the lab.
- 0In people
- 1In animals
- 1Only in the lab
What the studies found
We have not summed up these studies in words yet. The most important papers are listed under Sources.
Verdict
Fenbendazole has been studied for bladder cancer in animals, not yet in people.
Unproven means: it was only tested in animals or cells, or there is too little or mixed data from people. How we rate claims
What this means for you: Results in animals or in cells often do not hold in people. Do not stop or change your medicines because of it. Ask your doctor before you start taking it.
Sources
- Ferroptosis Induction by Fenbendazole Combined With Photothermal Therapy Triggers Dual-Immunotherapy Against Bladder Cancer.2026 · Adv Sci (Weinh) · In animals
- Synergistic intravesical instillation for bladder cancer: CRISPR-Cas13a and fenbendazole combination therapy.2024 · J Exp Clin Cancer Res · In the lab
