The drug company that makes Zyprexa has a site: www.zyprexa.com.  You can get answers to a lot of your questions there.  I have taken Zyprexa for years, usually in the 20-40mg range and have really been recovering from sz the last year and a half.  But if you can recover on 5mg, that is even better.  I know Zyprexa can have some bad side effects like weight gain and drowsiness, but if it helps, stay committed to taking it and to following your doctor's treatment plan.  Most of us at this site will attest to the fact that proper medication is the only way to stay mentally healthy.   Carolyn