I've been taking 30mg mirtazapine for around 6 months and although it's been really effective at reducing anxiety, it hasn't touched the sides of my low mood/lack of motivation. I increased the dose to 45mg a week ago, but my anxiety is back with a vengeance - racing thumping heart, jittery, agitated and obviously, no signs of improved mood. I don't know whether to continue with the increased dose or drop back to 30mg. Does anyone have any experience of this and does it get better? I can live with low mood but the anxiety is debilitating, to the point of not being able to leave the house due to panic. Strangely, when I increased the dose from 15mg to 30mg I felt amazing with no side effects at all!