21 CFR § 522.814Chapter I

§ 522.814 Eprinomectin.

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Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.

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Specifications.(a) Each milliliter of solution contains 50 milligrams (mg) eprinomectin.

Sponsor.(b) See No. 000010 in § 510.600(c) of this chapter.

Related tolerances.(c) See §§ 500.1410 and 556.227 of this chapter.

Conditions of use in cattle on pastureAmount.(d) —(1) Administer 1 mg/kilogram of body weight by subcutaneous injection.

Indications for use.Bunostomum phlebotomum, Cooperia oncophora,C. punctata, C. surnabada,Trichostrongylus axei, Ostertagia ostertagiHaemonchus placei, Oesophagostomum radiatum,O. lyrata, T. colubriformis;Dictyocaulus viviparus;Hypoderma bovis;Sarcoptes scabieibovis.C. oncophora, C. punctata,T. axeiH. placei, O. radiatum,O. lyrata,O. ostertagiB. phlebotomumD. viviparus(2) For the treatment and control of the following internal and external parasites: Gastrointestinal roundworms (adults and fourth-stage larvae) (including inhibited stage); (adults) lungworms (adults) cattle grubs mites var. Prevents reinfection with and for 100 days following treatment; and for 120 days following treatment; and and for 150 days following treatment.

Limitations.(3) Federal law restricts this drug to use by or on the order of a licensed veterinarian. Animals intended for human consumption must not be slaughtered within 48 days of the last treatment. This drug product is not approved for use in female dairy cattle 20 months of age or older, including dry dairy cows. Use in these cattle may cause drug residues in milk and/or in calves born to these cows. A withdrawal period has not been established for pre-ruminating calves. Do not use in calves to be processed for veal.

[76 FR 72618, Nov. 25, 2011, as amended at 79 FR 37620, July 2, 2014; 84 FR 39184, Aug. 9, 2019]

eCFR data current as of: June 10, 2026

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.