vitamin e was administered orally ( 400 iu twice a day ) to adult male humans for 28 days as either dl-alpha-tocopheryl acetate ( all-rac-alpha-tocopheryl acetate ) or d-alpha-tocopheryl acetate ( rrr-alpha-tocopheryl acetate ) .
C0042874
vitamin e
C0994472
dl-alpha-tocopheryl acetate