"this drug caused me a lot of problems.  at first it made my mania go away, but after a month on it i developed very stiff muscles. i was given cogentin but that didn&#039;t help, and after two months i became very spaced out and my family said i was saying some weird stuff but i couldn&#039;t remember.  my pdoc finally took me off zyprexa after 4 months when i showed her how stiff my muscles had become ( walking a block was a chore) and told her my leg would start twitching by itself. overall horrible experience."