MX will only have less worse effects than steroids if you don't get any of the bad side effects of MX. There are lots. It can severely impact on your bone marrow and that leads to all sorts of bad issues, with severe disruptions to blood cells, inflammation in spleen and pancreas, and escalating temperatures. Admittedly this type of toxicity which I experienced after two years is rare, but if the Mx is no longer helping reduce the steroids, there seems to be no point in taking that risk. Been off it for 8 weeks after an emergency stay in hospital and feeling so much better.