I guess you have to be careful. I've heard some of these meds have made people gain 100 lbs while increasing their cholesterol and increasing blood sugar levels. So, double check the cholesterol and blood sugar thing.
Zyprexa apparently increases cholesterol and blood sugar levels:
The Trouble with Zyprexa | Psych Central Professional
So, if you do gain weight and stuff, you have to really monitor that. Def make sure to eat healthy.
I'm on Latuda, which doesn't cause weight gain, but it DOES increase your cholesterol. I'm 5'5" 105 and my cholesterol is 350!!! It's twice what it should be. I basically have the cholesterol of someone who's like 250 or 300 lbs, even though I eat relatively healthy. I now have to get off Latuda soon.
Best of luck