21 C.F.R. § 558.265
Halofuginone.
Cite as 21 C.F.R. § 558.265 (2026)
(a)
Specifications.
Type A medicated articles containing 6 grams of halofuginone hydrobromide per kilogram.
(b)
Sponsor.
See No. 016592 in § 510.600(c) of this chapter.
(c)
Related tolerances.
See § 556.308 of this chapter.
(d)
Conditions of use.
It is used in feed as follows:
(1)
Chickens
—
Halofuginone in grams/ton
Combination in grams/ton
Indications for use
Limitations
Sponsor
(i) 2.72
Broiler chickens: For the prevention of coccidiosis caused by
Eimeria tenella, E. necatrix, E. acervulina, E. brunetti, E. mivati,
and
E. maxima
Feed continuously as sole ration. Do not feed to layers. Withdraw 4 days before slaughter
016592
(ii) 2.72
Bacitracin methylenedisalicylate, 10 to 50
Broiler chickens: For the prevention of coccidiosis caused by
Eimeria tenella, E. necatrix, E. acervulina, E. brunetti, E. mivati,
and
E. maxima;
for improved feed efficiency
Feed continuously as sole ration. Do not feed to layers. Withdraw 5 days before slaughter
016592
(iii) 2.72
Bambermycins, 1 to 2
Broiler chickens: For the prevention of coccidiosis caused by
Eimeria tenella, E. necatrix, E, acervulina, E. brunetti, E. mivati,
and
E. maxima;
for increased rate of weight gain and improved feed efficiency
Feed continuously as sole ration. Do not feed to layers. Withdraw 5 days before slaughter
016592
(iv) 2.72
Replacement broiler breeder chickens and replacement cage laying chickens: For the prevention of coccidiosis caused by
Eimeria tenella, E. necatrix, E. acervulina, E. maxima, E. mivati
/
E. mitis,
and
E. brunetti
Feed continuously as sole ration to replacement cage laying chickens until 20 weeks of age. Feed continuously as sole ration to replacement broiler breeder chickens until 16 weeks of age. Do not feed to laying chickens or water fowl. Withdraw 4 days before slaughter
016592
(2)
Turkeys
—
Halofuginone in grams/ton
Combination in grams/ton
Indications for use
Limitations
Sponsor
(i) 1.36 to 2.72
Growing turkeys: For the prevention of coccidiosis caused by
Eimeria adenoeides, E. meleagrimitis,
and
E. gallopavonis
Feed continuously as sole ration. Withdraw 7 days before slaughter. Do not feed to layers or water fowl
016592
(ii) 1.36 to 2.72
Bacitracin methylenedisalicylate, 10 to 50
Growing turkeys: For the prevention of coccidiosis caused by
Eimeria adenoeides, E. meleagrimitis,
and
E. gallopavonis,
and for increased rate of weight gain
Feed continuously as sole ration. Withdraw 7 days before slaughter. Do not feed to laying chickens or water fowl
016592
(iii) 1.36 to 2.72
Bambermycins, 2
Growing turkeys: For the prevention of coccidiosis caused by
Eimeria adenoeides, E. meleagrimitis,
and
E. gallopavonis,
and for increased rate of weight gain
Feed continuously as sole ration. Withdraw 7 days before slaughter. Do not feed to laying chickens or waterfowl
016592
(3) Halofuginone may also be used in combination with:
(i) Lincomycin as in § 558.325.
(ii) [Reserved]
[50 FR 33719, Aug. 21, 1985, as amended at 50 FR 42518, Oct. 21, 1985; 51 FR 7397, Mar. 3, 1986; 51 FR 11439, Apr. 3, 1986; 51 FR 14989, Apr. 22, 1986; 51 FR 23737, July 1, 1986; 53 FR 1018, Jan. 15, 1988; 53 FR 11065, Apr. 5, 1988; 54 FR 11519, Mar. 21, 1989; 54 FR 28052, July 5, 1989; 59 FR 51498, Oct. 12, 1994; 61 FR 21076, May 9, 1996; 61 FR 24694, May 16, 1996; 64 FR 42597, Aug. 5, 1999; 65 FR 45712, July 25, 2000; 66 FR 47962, Sept. 17, 2001; 71 FR 27956, May 15, 2006; 79 FR 10982, Feb. 27, 2014; 84 FR 8975, Mar. 13, 2019]
- Cross-references to the CFR
- 510.600556.308558.325.