Rung Five
Supplements
Unclear

Ivermectin

an antiparasitic drug promoted online for cancer. Sold as cures.

Verdict
UnclearThere isn't enough human evidence to say either way.
How sure
Rung 1 · UnprovenLab or animal data only, or never directly tested in people.

The rung shows how sure the science is, not how big the effect is. How to read these ratings

Cancers affected

None shown in people

What the evidence shows

Evidence comes from lab and animal studies. As of 2024, no completed human trial of ivermectin for cancer had published results.

What to do

Don't take it for cancer outside a clinical trial.

Sources

To take it to your doctor, print this page.

Spotted an error? Tell us and we’ll check it against the sources.

Related

Every supplement we rated, or follow one cancer step by step: breast cancer, colorectal cancer, lung cancer and prostate cancer.