I just started taking a very low dose of olanzapine/zyprexa because I was having hallucinations and delusions for a bit during a mixed episode. I was nearing the end of my episode when I was put on this medication. 

I started taking it approximately 5 days ago and somehow I already feel I notice a slight difference? My thoughts don't feel like reality anymore (I hope that makes sense) and I haven't had anymore hallucinations. I guess I feel....."normal" now? Has anyone noticed this medication working fast?

But of course this increase in stability could be because my lamictal was also increased from 100 mg to 150 mg. I'll be bumping that up to 200 mg in a little less than two weeks.