Zyprexa is also used to treat manic episodes and mixed states, or hypomanic depression. It is most effective when treating a person with BPI, or classic manic depression, as it quickly brings one down from a grandiose state of mind, usually by inducing sleep. In hypomania, or BPII, it is also considered effective, but can be a bit of overkill at times. Known side effects include hallucination, prolonged lethargy, and a general sense of confusion. A 5 mg dose is usually used to stop a manic episode; however, Zyprexa can be taken at much lower levels on a daily basis.