21 CFR §522.1083

1. (a)Specifications. Each milliliter (mL) of solution contains 0.2 milligrams (mg) gonadotropin releasing factor analog-diphtheria toxoid conjugate.
2. (b)Sponsor. See No. 054771 in § 510.600(c) of this chapter.
3. (c)Conditions of use in swine—(1) Amount. Each intact male pig or gilt should receive two 2-mL (0.4 mg) doses by subcutaneous injection. Administer the first dose no earlier than 9 weeks of age. Administer the second dose at least 4 weeks after the first dose.
   1. (2)Indications for use—(i) Intact male pigs intended for slaughter: For the temporary immunological castration (suppression of testicular function) and reduction of boar taint.
      1. (ii)Gilts intended for slaughter: For the temporary suppression of estrus.
   2. (3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. For reduction of boar taint, intact male pigs should be slaughtered no earlier than 3 weeks and no later than 10 weeks after the second dose.