21 CFR 522.234

§ 522.234 Butamisole.

United States · 21 CFR — Food and Drugs · Status: effective

Cite this

Citation: 21 CFR 522.234, § 522.234 Butamisole, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87398
Permanent ID: ys:prov:87398@1
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Full text

(a) Specifications. Each milliliter of solution contains 11 milligrams (mg) butamisole hydrochloride. (b) Sponsors. See Nos. 054771 and 058198 in § 510.600(c) of this chapter. (c) Conditions of use in dogs—(1) Amount. Administer 0.1 mg per pound of body weight by subcutaneous injection. In problem cases, retreatment for whipworms may be necessary in approximately 3 months. For hookworms, a second injection should be given 21 days after the initial treatment. (2) Indications for use. For the treatment of infections with whipworms (Trichuris vulpis), and the hookworm (Ancylostoma caninum). (3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.