"i&#039;ve had a very strange experience with this medication. i&#039;ve been suffering from chronic insomnia for a couple of years now - i&#039;ve been prescribed every sleeping aid under the sun. having had bad experiences with most tablets - zopiclone (evil stuff - always feel irritable and miserable after taking it), trazadone (spaced out, constipated with a really dry mouth!), antihistamines (don&#039;t work at all), zolpidem (fall asleep for 2 hours, wake up and can&#039;t go back to sleep) anyway, you get the picture! when i take mirtazapine (7.5mg) i fall asleep roughly 30 mins later and sleep for a solid 9 hours! sounds good....however, the next day i feel so weird...detached from reality to the point where i can&#039;t function on any level :-("