
Written based on 3 research studies on PubMed, searched on 2026. nov. 11..
The claim
Posts online say that CBD (cannabidiol) helps with bladder cancer.
Where research stands
We found 3 published papers on CBD (cannabidiol) and bladder cancer. They were published between 2021 and 2023. None of them is a study in people. 2 were studies in animals, and 1 was only in cells in the lab.
- 0In people
- 2In 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
CBD (cannabidiol) 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
- Anticancer properties of cannabidiol and Δ9-tetrahydrocannabinol and synergistic effects with gemcitabine and cisplatin in bladder cancer cell lines.2023 · J Cannabis Res · In animals
- Combination therapy with cannabidiol and chemotherapeutics in canine urothelial carcinoma cells.2021 · PLoS One · In animals
- Cannabidiol Effectively Promoted Cell Death in Bladder Cancer and the Improved Intravesical Adhesion Drugs Delivery Strategy Could Be Better Used for Treatment.2021 · Pharmaceutics · In the lab


