Try drinking lots of liquids. I gain weight on Zyprexa before, but now that I am back on it, I am able to keep my weight stable by drinking lots of liquid. In addition to the coffee and tea I consume for pleasure, I drink "as work" two pots of tea: 4 cups of black tea in the morning and 4 cups of hibiscus tea in the evening. Also, I drink tea if I still feel hungry after a meal and the feeling of hunger stops. I also eat soup every day. Via consuming high qualities of fluid I have been able to avoid all weight gain so far (I began Zyprexa over a month ago).