[Code of Federal Regulations] [Title 21, Volume 6] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR558.376] [Page 449] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 558--NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS--Table of Contents Subpart B--Specific New Animal Drugs for Use in Animal Feeds Sec. 558.376 Nitromide and sulfanitran. (a) Approvals. Type A medicated articles: 25 percent nitromide, 30 percent sulfanitran, with or without 5 percent roxarsone to 053501 in Sec. 510.600(c) of this chapter. (b) Related tolerances. See Sec. Sec. 556.220 and 556.680 of this chapter. (c) Conditions of use. It is used for chickens as follows: (1) Amount. 227 grams per ton nitromide (0.025 percent) and 272 grams per ton sulfanitran (0.03 percent). (i) Indications for use. As an aid in the prevention of coccidiosis caused by Eimeria tenella, E. necatrix, and E. acervulina. (ii) Limitations. Not to be fed to laying chickens; withdraw 5 days before slaughter; from Type A articles containing not more than 25 percent nitromide and 30 percent sulfanitran. (2) Amount. 227 grams per ton nitromide (0.025 percent) and 272 grams per ton sulfanitran (0.03 percent), plus 45.4 grams per ton roxarsone (0.005 percent). (i) Indications for use. Prevention of coccidiosis caused by Eimeria tenella, E. necatrix, and E. acervulina; growth promotion and feed efficiency; improving pigmentation. (ii) Limitations. Not to be fed to laying chickens; withdraw 5 days before slaughter; from Type A articles containing not more than 25 percent nitromide, 30 per cent sulfanitan, and 5 percent roxarsone; as sole source of organic arsenic. [41 FR 11002, Mar. 15, 1976, as amended at 51 FR 7399, Mar. 3, 1986; 52 FR 2686, Jan. 26, 1987; 55 FR 8460, Mar. 8, 1990]