Yes I have had alot of experience with IVIG and Cellcept. I recieve IVIG every 4 weeks and take 2000 mg of cellcept a day. I am so much better. I was sick for 8 yrs and Doctors could not figure out what was wrong with me. I don't have a diagnosis ( 2 rare of a condition) but know that I have a few autoimmune diseases and the cellcept has finally worked along with the IVIG. Nothing else helped to get my life back. I am finally starting to get back to normal after 8 years of batteling. SO I recommend the IVIG - little side affects. No side affects with the cellcept. Life is good again. I went through years of other meds and high dose steroid infusions before the cellcept and IVIG... It works!