I had virtually no Vitamin D about 12 years ago when diagnosed Fibromyagia so I was put on Prescription Vit D, it did bring it up to a low "okay level" I never noticed it effect my Bipolar specificially.. But I still take the Vitamin D and need to be outside 20 mins in the sun daily if possible..

If Lithium is managing your Bipolar well, why switch to Abilify?