What Is Zyprexa (olanzapine) Waffle Used For And What Are Its Side Effects?

I am researching information about zyprexa (olanzapine) waffle. What is it used for and what are it s most common side effects, and if there are other side effects, and when or if it has been approved by the FDA. As a bipolar disorder patient, I am trying to learn as much as I can about the treatment of medications. Thank-you.