§ 520.1192 Ivermectin paste.

Specifications.(a) Each milligram (mg) of paste contains 0.0187 mg (1.87 percent) or 0.00153 mg (0.153 percent) of ivermectin.

Sponsors.(b) See sponsors in § 510.600(c) of this chapter for use as in paragraph (e) of this section:

(1) No. 000010 for use of a 1.87 percent paste as in (e)(1) of this section and a 0.153 percent paste for use as in paragraph (e)(2) of this section.

(2) Nos. 051311, 054925, 058198, and 061133 for use of a 1.87 percent paste for use as in paragraph (e)(1) of this section.

Related tolerances.(c) See § 556.344 of this chapter.

Special considerations.(d) See § 500.25 of this chapter.

Conditions of useHorsesAmount.(e) —(1) —(i) 200 micrograms per kilogram (91 micrograms per pound) of body weight.

Indications for use.Strongylus vulgarisS. edentatusS. equinusTriodontophorusT. brevicaudaT. serratusCraterostomum acuticaudatumCoronocyclusC. coronatusC. labiatusC. labratusCyathostomumC. catinatumC. pateratumCylicocyclusC. insigneC. leptostomumC. nassatusC. brevicapsulatusCylicodontophorusCylicostephanusC. calicatusC. goldiC. longibursatusC. minutusPetrovinema poculatumOxyuris equiParascaris equorumTrichostrongylus axeiHabronema muscaeGasterophilusG. intestinalisG. nasalisDictyocaulus arnfieldiStrongyloides westeriHabronemaDraschiaOnchocerca(ii) For treatment and control of Large Strongyles (adults): (also early forms in blood vessels), (also tissue stages), , spp. Including and , and ; Small Strongyles (adults, including those resistant to some benzimidazole class compounds): spp. Including , , and , spp. Including and , spp. Including , , , and , spp., spp. Including , , , and , and ; Small Strongyles (fourth-stage larvae); Pinworms (adults and fourth-stage larvae): ; Ascarids (adults and third- and fourth-stage larvae): ; Hairworms (adults): ; Large mouth Stomach Worms (adults): ; Bots (oral and gastric stages): spp. Including and ; Lungworms (adults and fourth-stage larvae): ; Intestinal Threadworms (adults): ; Summer Sores caused by and spp. cutaneous third-stage larvae; Dermatitis caused by neck threadworm microfilariae, sp.

Limitations.(iii) For oral use only. Do not use in horses intended for human consumption.

CattleAmount.(2) —(i) 23 milligrams per 250 pounds of body weight.

Indications for use.Ostertagia ostertagiO. lyrata, Haemonchus placei, Trichostrongylus axei, T. colubriformis, Cooperia oncophora, C. punctata, Nematodirus helvetianus, Bunostomum phlebotomum, Strongyloides papillosusOesophagostomum radiatum, Trichuris ovisDictyocaulus viviparusHypoderma bovis, H. lineatumLinognathus vituli, Haematopinus eurysternus(ii) It is used in cattle for the treatment and control of gastrointestinal roundworms (adults and fourth-stage larvae) ( (including inhibited forms), (adults only), (adults only)); lungworms (adults and fourth-stage larvae) (); grubs (first, second, and third instars) (); and sucking lice ().

Limitations.(iii) For oral use only. Do not treat cattle within 24 days of slaughter. Because withdrawal time in milk has not been established, do not use in female dairy cattle of breeding age.

[49 FR 22275, May 29, 1984, as amended at 50 FR 27819, July 8, 1985; 51 FR 44449, Dec. 10, 1986; 53 FR 51273, Dec. 21, 1988; 62 FR 63270, Nov. 28, 1997; 65 FR 70661, Nov. 27, 2000; 67 FR 71820, Dec. 3, 2002; 68 FR 43294, July 22, 2003; 69 FR 59131, Oct. 4, 2004; 70 FR 8514, Feb. 22, 2005; 71 FR 40010, July 14, 2006; 71 FR 67298, Nov. 21, 2006; 73 FR 34184, June 17, 2008; 74 FR 6542, Feb. 10, 2009; 78 FR 17596, Mar. 22, 2013; 84 FR 8972, Mar. 13, 2019; 84 FR 39183, Aug. 9, 2019; 86 FR 14818, Mar. 19, 2021]