Section 573.625 - Menadione nicotinamide bisulfiteThe food additive may be safely used as follows:
(a) The additive is 1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-2-naphthalene sulfonic acid with 3-pyridine carboxylic acid amine (CAS No. 73581-79-0).(b) The additive is used or intended for use as a nutritional supplement for both the prevention of vitamin K deficiency and as a source of supplemental niacin as follows:(1) In chicken and turkey feeds at a level not to exceed 2 grams per ton of complete feed.(2) In growing and finishing swine feeds at a level not to exceed 10 grams per ton of complete feed.(c) To assure safe use, the label and labeling of the additive shall bear adequate directions for use.64 FR 46840, Aug. 27, 1999