Was able to quit smoking when got on right meds for bipolar 1 (Lithium was wonderful & quit smoking, but had kidney malfunction & had to get off it & go through a yr. of trial & error--a yr. of hell). Also on Concerta for ADHD & Provigil to counteract side effect of intense daytime sleepiness from bipolar meds. Been on them for about 18 yrs. now & have never had to increase dosage & don't feel jittery, etc.--just feel "normal" as if I would know what that was!!