In a meta-analysis of eighteen trials using vitamin E for tardive dyskinesia, twelve studies produced positive results on the supplementation use. Three of the six negative studies were conducted over a short study period. Best responses occurred in patients with tardive dyskinesia lasting fewer than five years and with vitamin E dosages of 1200 to 1600 IU daily.
In a meta-analysis of eighteen trials using vitamin E for tardive dyskinesia, twelve studies produced positive results on the supplementation use. Three of the six negative studies were conducted over a short study period. Best responses occurred in patients with tardive dyskinesia lasting fewer than five years and with vitamin E dosages of 1200 to 1600 IU daily.
SOURCE/REFERENCE: Boomershine KH, Shelton PS, Boomershine JE. “Vitamin E in the treatment of tardive dyskinesia,” Ann Pharmacother 1999 Nov;33(11):1195-202
