Was on it for years. Ate like an Olympic Champion. Would not stop eating. Initially, it made me sleepy, but that wore off, as it always does in me. No other real side effects. It did seem to help keep me from being manic, but we finally stopped it and moved on to Abilify. Zyprexa is now supposed to be my emergency sleep medicine and I had to take it a couple weeks ago. Absolutely worthless. Need to find a new emergency med. I've stopped all these sedating things and now my sleep is somewhat precarious. Fingers crossed.