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Ophthalmic and Topical Dosage Form New Animal Drugs; Gentamicin Sulfate, Betamethasone Valerate, Clotrimazole Ointment

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Food and Drug Administration, HHS.


Final rule; technical amendment.


The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of an abbreviated new animal drug application (ANADA) filed by Phoenix Scientific, Inc. The ANADA provides for the use of gentamicin sulfate, betamethasone valerate, and clotrimazole ointment for the treatment of canine otitis externa.


This rule is effective July 21, 2003.

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Lonnie W. Luther, Center for Veterinary Medicine (HFV-104), Food and Drug Administration, 7519 Standish Pl., Rockville, MD 20855, 301-827-8549, e-mail:

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Phoenix Scientific, Inc., 3915 South 48th St. Terrace, St. Joseph, MO 64503, filed ANADA 200-287 that provides for use of gentamicin sulfate, United States Pharmacopeia (USP); betamethasone valerate, USP; and clotrimazole, USP; (GBC) Ointment for the treatment of canine otitis externa associated with yeast (Malassezia pachydermatis, formerly Pityrosporum canis) and/or bacteria susceptible to gentamicin. Phoenix Scientific's GBC Ointment is approved as a generic copy of Schering-Plough Animal Health's OTOMAX Ointment approved under NADA 140-896. The ANADA is approved as of March 28, 2003, and the regulations are amended in § 524.1044g (21 CFR 524.1044g) to reflect the approval. The basis of approval is discussed in the freedom of information summary.

In addition, § 524.1044g is being amended to reflect the supplemental approval of several additional container sizes under NADA 140-896 and ANADA 200-229, which were not codified, and to reflect a current format.

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.

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List of Subjects in 21 CFR Part 524

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Therefore, under the Federal Food, Drug, and Cosmetic Act and under authority delegated to the Commissioner

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1. The authority citation for

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Authority: 21 U.S.C. 360b.

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2. Section 524.1044g is amended by revising paragraphs (b) and (c) to read as follows:

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Gentamicin sulfate, betamethasone valerate, clotrimazole ointment.
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(b) Sponsors. See sponsors in § 510.600(c) of this chapter for uses as in paragraph (c) of this section.

(1) No. 000061 for use of 7.5- or 15-gram (g) tubes, 12.5-, 30-, or 215-g bottles.

(2) No. 051259 for use of 7.5- or 15-g tubes, 10-, or 25-g bottles.

(3) No. 059130 for use of 10- or 215-g bottles.

(c) Conditions of use in dogs—(1) Amount. Instill ointment twice daily into the ear canal. Therapy should continue for 7 consecutive days.

(i) From 7.5- or 15-g tubes, 10-, 12.5-, 25-, or 30-g bottles: 4 drops for dogs weighing less than 30 pounds (lb) or 8 drops for dogs weighing 30 lb or more.

(ii) From 215-g bottles: 2 drops for dogs weighing less than 30 lb or 4 drops for dogs weighing 30 lb or more.

(2) Indications for use. For the treatment of canine otitis externa associated with yeast (Malassezia pachydermatis, formerly Pityrosporum canis) and/or bacteria susceptible to gentamicin.

(3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

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Dated: July 3, 2003.

Andrew J. Beaulieu,

Associate Director, Center for Veterinary Medicine.

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[FR Doc. 03-18353 Filed 7-18-03; 8:45 am]