Rules and Regulations. Final rule

1,013 words·~5 min read·/register/2004/03/02/04-4518

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BILLING CODE 4910-13-P DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration 21 CFR Part 520 Oral Dosage Form New Animal Drugs; Levamisole Powder for Oral Solution 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 supplemental new animal drug application

(NADA)filed by Schering-Plough Animal Health Corp. The supplemental NADA revises the description of various internal parasites in labeling for levamisole powder, used to make a drench solution for oral administration to cattle and sheep. DATES: This rule is effective March 2, 2004. FOR FURTHER INFORMATION CONTACT: Janis R. Messenheimer, Center for Veterinary Medicine (HFV-130), Food and Drug Administration, 7500 Standish Pl., Rockville, MD 20855, 301-827-7578, e-mail: *jmessenh@cvm.fda.gov* . SUPPLEMENTARY INFORMATION: Schering-Plough Animal Health Corp., 1095 Morris Ave., Union, NJ 07083, filed a supplement to NADA 112-051 for LEVASOLE (levamisole) Soluble Drench Powder revising the description of various internal parasites in labeling for levamisole powder, used to make a drench solution for oral administration to cattle and sheep. The supplemental NADA is approved as of December 23, 2003, and the regulations are revised in 21 CFR 520.1242a to reflect the approval and a current format. The basis of approval is discussed in the freedom of information summary. In accordance with the freedom of information provisions of 21 CFR part 20 and 21 CFR 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 Division of Dockets Management (HFA-305), Food and Drug Administration, 5630 Fishers Lane, rm. 1061, Rockville, MD 20852, between 9 a.m. and 4 p.m., Monday through Friday. The agency has determined under 21 CFR 25.33(a)(1) that this action is of a type that does not individually or cumulatively have a significant effect on the human environment. Therefore, neither an environmental assessment nor an environmental impact statement is required. This rule does not meet the definition of “rule” in 5 U.S.C. 804(3)(A) because it is a rule of “particular applicability.” Therefore, it is not subject to the congressional review requirements in 5 U.S.C. 801-808. List of Subjects in 21 CFR Part 520 Animal drugs. 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 part 520 is amended as follows: PART 520—ORAL DOSAGE FORM NEW ANIMAL DRUGS 1. The authority citation for 21 CFR part 520 continues to read as follows: Authority: 21 U.S.C. 360b. 2. Section 520.1242a is revised to read as follows: § 520.1242a Levamisole powder for oral solution.

(a)*Specifications* . Each package of powder contains 9.075, 11.7, 18.15, 46.8, or 544.5 grams

(g)levamisole hydrochloride.

(b)*Sponsors* . See sponsors in § 510.600(c) for use as follows:

(1)No. 000061 for use of 46.8- and 544.5-g packages as in paragraph (e)(1)(i), (e)(1)(ii)(B), and (e)(1)(iii) of this section; for 11.7-, 46.8-, and 544.5-g packages as in paragraph (e)(2)(i), (e)(2)(ii)(B), and (e)(2)(iii) of this section; and for an 18.15-g package as in paragraph (e)(3) of this section.

(2)No. 053501 for use of a 46.8-g package as in paragraph (e)(1)(i), (e)(1)(ii)(a), and (e)(1)(iii) of this section; for 11.7- and 46.8-g packages as in paragraph (e)(2)(i), (e)(2)(ii)(A), and (e)(2)(iii) of this section; and for 9.075- and 18.15-g packages as in paragraph (e)(3) of this section.

(3)No. 057561 for use of 46.8- and 544.5-g packages as in paragraphs (e)(1)(i), (e)(1)(ii)(A), and (e)(1)(iii) and (e)(2)(i), (e)(2)(ii)(A), and (e)(2)(iii) of this section.

(4)No. 059130 for use of an 18.15-g package as in paragraph (e)(3) of this section.

(c)*Related tolerances* . See § 556.350 of this chapter.

(d)*Special considerations* . See § 500.25 of this chapter.

(e)*Conditions of use* . It is used as an anthelmintic as follows:

(1)*Cattle* —(i) *Amount* . 8 milligrams per kilogram (mg/kg) body weight as a drench.

(ii)*Indications for use* —(A) Effective against the following nematode infections: Stomach worms ( *Haemonchus, Trichostrongylus, Ostertagia* ); intestinal worms ( *Trichostrongylus, Cooperia, Nematodirus, Bunostomum, Oesophagostomum* ); and lungworms ( *Dictyocaulus* ).

(B)Effective against the following adult nematode infections: Stomach worms ( *Haemonchus placei, Ostertagia ostertagi, Trichostrongylus axei* ); intestinal worms ( *T. longispicularis, Cooperia oncophora, C. punctata, Nematodirus spathiger, Bunostomum phlebotomum, Oesophagostomum radiatum* ); and lungworms ( *Dictyocaulus viviparus* ).

(iii)*Limitations* . Do not slaughter for food within 48 hours of treatment. Not for use in dairy animals of breeding age. Conditions of constant helminth exposure may require retreatment 2 to 4 weeks after the first treatment. Consult your veterinarian before using in severely debilitated animals.

(2)*Sheep* —(i) *Amount* . 8 mg/kg body weight as a drench.

(B)Effective against the following adult nematode infections: Stomach worms ( *Haemonchus contortus, Trichostrongylus axei, Teladorsagia circumcincta* ); intestinal worms ( *Trichostrongylus colubriformis, Cooperia curticei, Nematodirus spathiger, Bunostomum trigonocephalum, Oesophagostomum columbianum, Chabertia ovina* ), and lungworms ( *Dictyocaulus filaria* ).

(iii)*Limitations* . Do not slaughter for food within 72 hours of treatment. Conditions of constant helminth exposure may require retreatment 2 to 4 weeks after the first treatment. Consult veterinarian before using in severely debilitated animals.

(3)*Swine* —(i) *Amount* . 8 mg/kg body weight in drinking water.

(ii)*Indications for use* . Effective against the following nematode infections: Large roundworms ( *Ascaris suum* ), nodular worms ( *Oesophagostomum* spp.), intestinal thread worms ( *Strongyloides ransomi* ) and lungworms ( *Metastrongylus spp.* ).

(iii)*Limitations* . Do not administer within 72 hours of slaughter for food. Pigs maintained under conditions of constant exposure to worms may require retreatment within 4 to 5 weeks after the first treatment. Consult your veterinarian before administering to sick swine. Dated: February 12, 2004. Steven D. Vaughn, Director, Office of New Animal Drug Evaluation, Center for Veterinary Medicine. [FR Doc. 04-4518 Filed 3-1-04; 8:45 am]

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