Mike, I hope you are out on that golf course as I type this to you. Let me share that the interferon is a "booster" for the BCG and is usually given with the second round of BCG. If you cannot tolerate BCG, it is our understanding that Valstar (formerly Valrubicin) is used for patients who cannot use BCG and as another shot at beating the bladder cancer if it recurs after a couple rounds of BCG for those who did tolerate it. My husband has non-invasive CIS and had one recurrence of a small malignant lesion after his 2nd round of BCG (Nov 2013). His urologist removed it and continued with 2 more rounds of BCG and since Feb. 2014 all biopsies have been negative. Even so, his Cleveland Clinic uro/surgeon is still recommending bladder removal. We are opting not to do that just yet, instead we continue to do our own research and learn from all the kind folks on the bladder cancer forums before making such a big decision. We've recently learned about Tumeric/Curcumin and have ordered it. It is a powerful antioxidant that has cancer fighting properties supported by a lot of research all over the net. We are so grateful for all the folks who have shared their knowledge with us. Mike, keep up the good work on your BC. Laurie & Phil