21 CFR § 516.570 - Doramectin.

---
identifier: "/us/cfr/t21/s516.570"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 516.570 - Doramectin."
title_number: 21
title_name: "Food and Drugs"
section_number: "516.570"
section_name: "Doramectin."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "516"
part_name: "NEW ANIMAL DRUGS FOR MINOR USE AND MINOR SPECIES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 360ccc-1, 360ccc-2, 371."
regulatory_source: "72 FR 41017, July 26, 2007, unless otherwise noted."
cfr_part: "516"
---


# 516.570 Doramectin.

(a) *Specifications.* Each milliliter of solution contains 10 milligrams of doramectin.

(b) *Sponsor.* See No. 054771 in § 510.600(c) of this chapter.

(c) *Conditions of use in cattle*—(1) *Amount.* 200 micrograms per kilogram (10 milligrams per 110 pounds).

(2) *Indications for use.* For prevention and treatment of infestations caused by larvae of *Cochliomyia hominivorax* (myiasis), and prevention of reinfestation for 21 days in cattle.

(3) *Limitations.* Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Administer as a single subcutaneous or intramuscular injection. Do not slaughter cattle for human consumption within 35 days of treatment. Not for use in female dairy cattle 20 months of age or older. A withdrawal period has not been established for this product in preruminating calves. Do not use in calves to be processed for veal.

[91 FR 5300, Feb. 6, 2026]