The study by scientists at the Weizmann Institute of Science found that sildenafil may restrict cancer metastasis by disrupting how cancer cells access and use cholesterol. Cholesterol is an important component of cell membranes and supports cellular processes that enable cancer cells to migrate and invade distant organs. In the study, disrupting cholesterol trafficking appeared to impair cancer cells' ability to move and form metastases. While sildenafil interfered with the movement of cholesterol within cells, statins reduced the body's ability to produce new cholesterol, potentially targeting cancer cells' cholesterol supply through two distinct mechanisms. For now, the findings point to a potential new avenue for cancer research rather than a reason for patients to take Viagra as a cancer treatment.