CFR - Code of Federal Regulations Title 21

The information on this page is current as of Dec 22, 2023.

For the most up-to-date version of CFR Title 21, go to the Electronic Code of Federal Regulations (eCFR).

[Code of Federal Regulations]

[Title 21, Volume 6]

[CITE: 21CFR522.533]

TITLE 21--FOOD AND DRUGS

CHAPTER I--FOOD AND DRUG ADMINISTRATION
DEPARTMENT OF HEALTH AND HUMAN SERVICES

SUBCHAPTER E - ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS

PART 522 -- IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS

Sec. 522.533 Deslorelin.

(a) Specifications. (1) Each implant contains 2.1 milligrams (mg) deslorelin acetate.

(2) Each milliliter (mL) of suspension contains 1.8 mg deslorelin acetate.

(b) Sponsors. See sponsor numbers in § 510.600(c) of this chapter as follows:

(1) No. 051311 for use of product described in paragraph (a)(1) as in paragraph (c)(1) of this section.

(2) No. 043264 for use of product described in paragraph (a)(2) as in paragraph (c)(2) of this section.

(c) Conditions of use - (1) Horses and ponies - (i) Amount. One implant per mare subcutaneously in the neck.

(ii) Indications for use. For inducing ovulation within 48 hours in estrous mares with an ovarian follicle greater than 30 millimeters (mm) in diameter.

(iii) Limitations. Do not use in horses or ponies intended for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

(2) Horses - (i) Amount. Administer 1.8 mg (1 mL) by intramuscular injection in the neck.

(ii) Indications for use. For inducing ovulation within 48 hours in cyclic estrous mares with an ovarian follicle between 30 and 40 mm in diameter.

(iii) Limitations. Do not use in horses intended for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[75 FR 81456, Dec. 28, 2010, as amended at 79 FR 18158, Apr. 1, 2014; 87 FR 17945, Mar. 29, 2022; 87 FR 58962, Sept. 29, 2022]