Mirtazapine
"I'm in UK. I've taken Mirtazapine for 3 nights & so far it has had no effect on my insomnia. It has perhaps made it worse as 2 of those nights I couldn't lie still but was fidgety & restless. I end up taking a temazepam, otherwise I literally lie wide awake all night.  But I can't do this indefinitely as docs at my practice just refuse to give scrips for temazepam & other benzodiazepines, even though I have never abused these drugs. 
I don't want to lower the dose as main reason for taking Mirtazipine is my chronic anxiety, which I'm still hoping this med will help. 
Apart from the restlessness at night there have so far been no side effects. Felt a bit spaced out yesterday but nothing serious. 
But wish could night get good nights sleep."