Hi:
All I can tell you is the experiences i have had ,how I reacted and what has happened since I have made some critical decisions.
I took 50 mg for about 4 courses and with agreement with my Drs. and Nurses, it was determined that I would have great difficulty tolerating 50 mg, so my dosage was changed to 37'5 about 2.5 yearsago. So first, I'm still doing well on a lower dosage. Second,the side effects can be rough especially inthe late stages of the course. Fatigue, diaherrea, sore mouth feetand thyroid problem that had to be corrected and was. While I wouldn't be honest with you if I said there wasn't discomfort,I have not spent one day in bed and am able bto function although with more diffificulty towards the end of the course.I know little about immuology and thus can't respond to that. But 3and a half years on sutent, lower dosage===at least i am here to tell you how I feel. Let me know how and what you are doing..