Statin drug Rosuvastatin (brand name: Crestor), commonly prescribed for patients with high cholesterol, may prove effective in the treatment of prostate cancer, according to a new study led by Dr. Xiao-Yan Wen at St. Michaelâs Hospital. The drug suppressed the growth of human prostate cancer cells implanted in mice, providing âsolid pre-clinical evidence and a strong rationale for clinical trials of statins in the treatment of prostate cancer,â Wen said.