excessive sleepiness coming off mirtazapine. my son was on 45mg of mirtazapine for 2 years and 3 weeks ago decided to stop taking the drug and went cold turkey. since then he has suffered with excessive sleepiness on many days - gets up at lunchtime seeming alright but, falls asleep 2 hours later and continues sleeping on and off for most of the day until he goes back to bed early evening and sleeps all night. he also at times speaks much more slowly and has slurred speech and slow movements. Another day he will be much more alert but tiredness and sleepiness never far away. Has anyone else had this symptom? how long is it likely to last?
he is lucky if that is all he is getting. it is very dangerous to jump off at 45mg. keep an eye on him as it is still early days and could get worse.