Citalopram off, on fluoxetine now, Would side effects from other med go away when can Itake new med? Didn't take other med today so when should start?

Great questions. Ideally these should have been answered by the prescribing physician. Not knowing specifically which side effects you were having I can't really comment on that, but usually it is not recommended that you suddenly stop taking one drug to allow a "wash out" period, because you could have unpleasant withdrawal symptoms. Review the materials you got from your pharmacy, and if not helpful call your MD.