When I was on Zyprexa I gained almost 20 lbs in one month. I was also a highly active anorexic at the time. I was NOT eating enough calories for weight gain like that, if any weight gain at all. I have always been a one meal a day with no snacks kind of eater ( when The anorexia is active , the meal could be a few crackers and a peice of fruit maybe) This didnt change on zyprexa. I felt like I was "puffing" up, like magically just puffing. I complained and complained. But all my pdoc would say was that I needed the weight gain anyways. And he also tried to tell me it was my appetite. And his opinion was this is all good.

When he agreed to take me off tho that 20lbs was gone in a flash and faster than even an anorexic could starve it off. I don't know what was going on, or why I gained like that. But for me it was a horrible experience.