I just started Zyprexa last week and already I've gained weight. My appetite has always been healthy to begin with, but this is ridiculous. I started the no-carb diet today, while it is still early. I'm usually 129 lbs, now I'm 134...that's in less than a week!! The way I look at it though, is I'd rather gain 5 lbs than get tardive dyskinesia from the Thorazine I was on.