i've been on it for over a year with no side effects at all. My doc did a couple of liver function tests at the beginning. I am at the low end of the metabolizing spectrum and he hasn't done any test in probably a year. But it seems to be helping and I haven't seen any side effects at all so I can't complain.
When were those originial studies done? I thought 6mp had been around a long while.
I did get huge bumps (nodules?) on the lymph nodes in my neck last fall and it scared me to death as I immediatley thought about the 6mp and immune suppression/cancer risk. Turned out it was just reaction to shingles from a pred withdrawal.