I've quit mirtazapine, but am not doing well without medication. I just struggle to even think of alternatives that wouldn't also have the same effect (even if not as strong) on making you want to eat more. I had the same issue with paroxetine in the past, and while fluoxetine didn't have such an obvious effect on my appetite, I did gain weight while on it, and it didn't work on my depression and anxiety in the longer term.
To me it looks like wellbutrin and venlafaxine are the only ones out there where weight gain isn't a common side effect? Sounds like the first one is impossible to get in general, and for some reason my GP doesn't want me on venlafaxine (contraindications with other meds, I believe). I guess I'd just like to know which ones of the rest of the bunch would be least likely to have a big effect? Any experiences?
I know you can counteract the effects on appetite with diet and exercise, but my mental health is currently utterly rubbish, and I have no motivation. Also, I have an out-of-proportion fear of weight gain right now (yes, I have therapy; no it's unlikely to fix this), so I doubt I'll be able to persuade myself to take any where the risk seems high.