I am currently on 2gms of Cellcept a day for advanced SLE. I take a different medication for my pericarditis/kidney/heart/and brain problems.
My experience with Cellcept is that I have to have labs drawn every two weeks, to check red/white and platelet counts (VERY IMPORTANT). I believe if you look on the SLE Medications discussion forum that someone has posted a great website about Lupus meds.
As for me, Cellcept keeps me stable and out of the hospital for the most part.
There's good and bad to all meds. It's important to find out as much as you can about the benefits vs. the risks.
Best wishes - and take care
Life is good, love is better