New research suggests sildenafil, the active ingredient in Viagra, could have a role beyond treating erectile dysfunction. According to the study highlighted in the report, the drug may help limit cancer metastasis, or the spread of cancer to other parts of the body.

The reported finding centers on cholesterol. Researchers found that sildenafil may restrict cancer cells’ access to cholesterol, which appears to be important in the process that helps those cells spread. By interfering with that access, the drug could potentially make metastasis harder for cancer cells.

The results add to growing interest in whether existing medicines can be repurposed for other conditions. Because sildenafil is already a well-known prescription drug, the study raises questions about whether it could eventually be explored further as part of cancer-related treatment strategies.

At the same time, the findings are an early scientific signal rather than proof of a new standard treatment. More research will be needed to understand which cancers might be affected, how strong the benefit could be, and whether the effect seen in the study translates into real-world outcomes for patients.