@sal99 I took mycophenolate Mofetil for about 3 years with no side effects until this past autumn. I developed severe diarrhea which the doctor said is the worst side effect and rare. It took me awhile to recover and now I’m on a new drug-mycophenolic acid. But, Mycophenolate mofetil (cell cept) worked very well for me until it didn’t. Now, I tell patients to know the side effects of drugs that you're on, especially the serious ones, and to let your doctor know immediately, Does this help at all?