"Been on and off olanzapine for 15 years. Varying doses. As high as 15mg per day currently on 2.5mg per day. Dose wonders to reduce voices, anxiety, OCD thoughts, and i sleep like a log. On the down side I'm way less creative and energetic. I have put on huge amounts of weight in the past but when I came off the med the weight disappeared quickly. Now I can control weight gain by simply not eating processed foods and carbs. No carbs means no olanzapine food cravings. I'm still able to eat fruit sugars with no probs. I just eat lots of proteins  and vegetables. One major concern is my memory isn't as good, I used to be super sharp and I can't think as clearly nor process complicated concepts. Over all though it saved my life."