[Federal Register Volume 63, Number 52 (Wednesday, March 18, 1998)] [Rules and Regulations] [Pages 13122-13123] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 98-6909] ----------------------------------------------------------------------- DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration 21 CFR Parts 522 and 556 Implantation or Injectable Dosage Form New Animal Drugs; Colistimethate Sterile Powder AGENCY: Food and Drug Administration, HHS. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a new animal drug application (NADA) filed by Alpharma Inc. The NADA provides for subcutaneous use of colistimethate sodium powder, reconstituted in aqueous solution, in the neck of 1- to 3-day-old chickens. EFFECTIVE DATE: March 18, 1998. FOR FURTHER INFORMATION CONTACT: George K. Haibel, Center for Veterinary Medicine (HFV-133), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 301-594-1644. SUPPLEMENTARY INFORMATION: Alpharma Inc., One Executive Dr., P.O. Box 1399, Fort Lee, NJ 07024, filed NADA 141-069 that provides for use of First GuardTM Sterile Powder (colistimethate sodium), reconstituted in sterile saline or sterile water for injection, for subcutaneous injection in the neck of 1- to 3-day-old chickens for control of early mortality associated with Escherichia coli organisms susceptible to colistin. The drug is restricted to use by or on the order of a licensed veterinarian. The NADA is approved as of January 13, 1998, and the regulations are amended by adding new Sec. 522.468 to reflect the approval. The basis of approval is discussed in the freedom of information summary. In addition, the regulations are amended by adding new Sec. 556.167 to reflect that a tolerance for residues of colistimethate in edible chicken tissues is not required. The drug is a therapeutic product administered to 1- to 3-day-old chickens at the equivalent of 0.2 milligrams of colistin activity per chicken. At 28 days post-treatment, the earliest possible time broiler chickens would be considered marketable, total residues were calculated to be at least 36 times below the safe concentration level. In accordance with the freedom of information provisions of 21 CFR part 20 and 514.11(e)(2)(ii), a summary of safety and effectiveness data and information submitted to support approval of this application may be seen in the Dockets Management Branch (HFA-305), Food and Drug Administration, 12420 Parklawn Dr., rm. 1-23, Rockville, MD 20857, between 9 a.m. and 4 p.m., Monday through Friday. Under section 512(c)(2)(F)(i) of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 360b(c)(2)(F)(i)), this approval for food- producing animals qualifies for 5 years of marketing exclusivity beginning January 13, 1998, because no active ingredient of the drug (including any ester or salt thereof) has been previously approved in any other application filed under section 512(b)(1) of the act. The agency has carefully considered the potential environmental effects of this action. FDA has concluded that the action will not have a significant impact on the human environment, and that an environmental impact statement is not required. The agency's finding of no significant impact and the evidence supporting that finding, contained in an environmental assessment, may be seen [[Page 13123]] in the Dockets Management Branch (address above) between 9 a.m. and 4 p.m., Monday through Friday. List of Subjects 21 CFR Part 522 Animal drugs. 21 CFR Part 556 Animal drugs, Foods. Therefore, under the Federal Food, Drug, and Cosmetic Act and under authority delegated to the Commissioner of Food and Drugs and redelegated to the Center for Veterinary Medicine, 21 CFR parts 522 and 556 are amended as follows: PART 522--IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS 1. The authority citation for 21 CFR part 522 continues to read as follows: Authority: 21 U.S.C. 360b. 2. Section 522.468 is added to read as follows: Sec. 522.468 Colistimethate sodium powder for injection. (a) Specifications. Each vial contains colistimethate sodium equivalent to 10 grams colistin activity and mannitol to be reconstituted with 62.5 milliliters sterile saline or sterile water for injection. The resulting solution contains colistimethate sodium equivalent to 133 milligrams per milliliter colistin activity. (b) Sponsor. See 046573 in Sec. 510.600(c) of this chapter. (c) [Reserved] (d) Conditions of use. (1) 1- to 3-day-old chickens. (i) Dosage. 0.2 milligram colistin activity per chicken. (ii) Indications for use. Control of early mortality associated with Escherichia coli organisms susceptible to colistin. (iii) Limitations. For subcutaneous injection in the neck of 1- to 3-day-old chickens. Not for use in laying hens producing eggs for human consumption. Do not use in turkeys. Federal law restricts this drug to use by or on the order of a licensed veterinarian. (2) [Reserved] PART 556--TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD 3. The authority citation for 21 CFR part 556 continues to read as follows: Authority: 21 U.S.C. 342, 360b, 371. 4. Section 556.167 is added to read as follows: Sec. 556.167 Colistimethate. A tolerance for residues of colistimethate in the edible tissues of chickens is not required. Dated: February 22, 1998. Michael J. Blackwell, Deputy Director, Center for Veterinary Medicine. [FR Doc. 98-6909 Filed 3-17-98; 8:45 am] BILLING CODE 4160-01-F