As anti-psychotics can create diabetes and tardive dyskinesia if a person has straight bipolar (as opposed to bipolar with psychotic features where an anti-psychotic is absolutely needed) there is the potential to change to a mood stabilizer, none of which have the risk of creating
tardive dyskinesia and out of all of them Lamictal has the least potential for weight gain
and is generally safe and effective. Perhaps you could ask your psychiatrist about Lamictal.