major depressive disorde
"I have been taking Mirtazapine for a little less than 2 months for my Major Depressive Disorder, Insomnia, Underweight  and have already noticed an improvement with my depression and insomnia, and have been steadily gaining much needed weight. 
However the side effects of this drug are not to be underestimated. I personally have suffered the following side effects - 
Exfoliative Dermatitis, odd dreams, dry mouth, nausea, eye pain, and at some points worsened depression. 
Aside from my negative experience with its side effects, I'm relatively pleased with the effectiveness of this anti-depressant."