insomnia
"I have been taking "Mirtazapine" for 2 years. I was under weight with no appetite and was taking over the counter medicines to sleep. I was 40 years old weighing 89lbs before my doctor prescribe me this medicine - 2 years later I'm 111 lbs and sleep well every night. This really worked for me I would recommend this if you need to gain weight (because it makes you hungry) and if you have trouble falling asleep and staying asleep."