Fire_Star; I was put on Zyprexa when I was first diagnosed and inpatient I gained weight very quickly as well and I never had a weight problem either. I gained 30lbs. in 2 months and was switched to another med that made me gain as well, but not as fast as zyprexa. I would suggest speaking to your pdoc about any other options. I know some will disagree, but all the weight I gained from the meds I was on (over 50lbs in total) was devastating for me and I wish I spoke up sooner about my concerns with the side effects.

Just as a note I know not everyone gains weight on these meds and every person is different, but for me I did. I also don't agree with not trying a med because of it's affect on others, since every person is different.