[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: 21CFR522.842]

[Page 237]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 522--IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS--Table of Contents
 
Sec.  522.842  Estradiol benzoate and testosterone propionate in combination.

    (a) [Reserved]
    (b) Sponsors. See 000856 in Sec.  510.600(c) of this chapter for use 
as in paragraph (d)(1)(i), (d)(2), and (d)(3) of this section. See 
021641 in Sec.  510.600(c) of this chapter for use as in paragraph (d) 
of this section.
    (c) Related tolerances. See Sec. Sec.  556.240 and 556.710 of this 
chapter.
    (d) Conditions of use--Heifers. For implantation as follows:
    (1) Amount. (i) 20 milligrams of estradiol benzoate and 200 
milligrams of testosterone propionate per dose.
    (ii) 20 milligrams estradiol benzoate and 200 milligrams 
testosterone propionate in eight pellets with 29 milligrams tylosin 
tartrate as a local antibacterial in one pellet, per implant dose.
    (2) Indications for use. Growth promotion and improved feed 
efficiency.
    (3) Limitations. For heifers weighing 400 pounds or more; for 
subcutaneous ear implantation, one dose per animal; not for use in dairy 
or beef replacement heifers.

[40 FR 13858, Mar. 27, 1975, as amended at 49 FR 29778, July 24, 1984; 
61 FR 5506, Feb. 13, 1996; 64 FR 48294, Sept. 3, 1999]