Yes, I was prescribed it once under duress by a psychiatrist I saw during my anorexic era, and I didn't want to take it and he knew that.
He was patronising and unpleasant.
I tried taking it. I took one tablet and it stuck in my throat and I felt like it stayed there all day. I was too nervous to take another one. Also I had read that it decreases appetite which was exactly what I didn't need at that time. And I hate the idea of ADs in any case, and like the PP said I had heard that it was little more than a placebo.
I had psychotherapy and that didn't help a lot either. Then I was referred to a proper unit as an outpatient and travelled there for a while once a week, for therapy or just counselling really. I made friends with a woman there who was really just friendly, and didn't seem to be trying to 'treat' me. She did help.
A year or so after this had ended, I started to eat again after getting to a point where I weighed so little I thought I would probably die. I made the choice.
This was about 12 years ago now and I am still stable, though my eating is still a bit messed up and may always be.
My advice would be continue with the CBT, get as much talking therapy as you can, and don't take ADs unless you actually want to. You are in control here. It's up to you. They can't make you take them.
I had CBT about 5 years ago for other reasons and found it incredibly useful after initially dismissing it as a concept. It was brilliant. There was no trickery or weirdness involved. It was common sense. So I recommend it, while I am highly dubious about ADs to this day, having had several friends who had terrible issues with them.
Good luck x