"i started on 20 mg of latuda for bipolar and anxiety disorder. i felt the same as i always do during the first week of starting latuda. then i upped it to 40 mg a week later and about an hour later i felt super tired , dizzy , confused , slow heart beat , and un aware of what was going on around me. and to make it all worse i had trouble sleeping. but i felt so weak like i needed to sleep but couldn&#039;t. i&#039;m unsure whether i should continue or discontinue it. overall rating on this drug would be a 5. those were terrible side effects and they hit me hard."