"mirtazapine has been a life saver for me. i have had trouble falling asleep on and off over the last two and a half years mainly because i&#039;ve been unhappy at work. just recently i was on zolpidem for 2 months and then switched to mirtazapine when i realised my sleep problems weren&#039;t going to get better in the short term. a couple of years ago things were so bad that sleeping tablets didn&#039;t even work and mirtazapine was the only medication that got me to sleep. i function normally after about the first 8 days on adjusting to this tablet - day 1 i feel like a zombie but by day 3 i start to feel less like that. just stick with it for a few days and you will adjust, is my advice. the dosage i take is 30mg or 45mg."