Our son-in-law had advanced prostate cancer and, had he been diagnosed sooner (he wouldn't go to a doctor), he might have survived, as the FenBen WAS working! He refused chemo and began using the FenBen and vitamin supplements and the doctors were puzzled by the decline in cancer cells. He never told them what he was doing. In the end, he gave in to his parents and sister's continued harrassing about doing chemo and he sucumbed to the cancer. While the doctors gave him less than a year, the FenBen gave him almost 2!