I was diagnosed with prostate cancer in March of this year and decided to try IV vitamin C therapy. Have had five weekly treatments, starting with 25g and prgressing to 50g. Have had severe stomach problems in the last few weeks which seem to be related to the IV treatments. But understand that this is not a normal reaction to Vitamin C. I wonder if anyone else has had similar side effects from Vitamin C treatment. I want to continue the IV's but don't like the "belly aches" and frequent trips to the John. Any comments would be appreciated.