Just wanted to add a note here for people researching this drug:
Sleeping and improved appetite were good, and side effects were minimal (I couldn't tolerate SSRIs).
BUT... keep an eye on your Cortisol, becasue it does lower it‚ and in CFS your Cortisol may already be low.
I was getting low Cortisol symptoms to the point where they were throwing around an Addisons Dx, and NO ONE, not my PCP, naturopath or 8 or so ER visit Drs put the two together.
I had a body intuition moment where I felt I needed to get off it and started tapering against all advice.
I had been told "Not to Google", but finally just typed in "Remeron", "cortisol" and there it was (and that was the end of my blind faith in my doctor!). It was pretty great to withdraw from, but I did that slowly. I have felt much better since, but Remeron is still a good drug and served its purpose too! It's Great for sleep, and if you ONLY need it for sleep, consider taking a very low dose,
much lower than your doctor likely prescribed. I can use it to induce sleep at 3.5mg!
Remeron/Mirtazapine did get me through rough Benzodiazapine withdrawal (thanks, doc, for putting my on benzos for YEARS)