21 CFR § 522.82Chapter I

§ 522.82 Aminopropazine.

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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 aminopropazine fumarate equivalent to 25 milligrams (mg) aminopropazine base.

Sponsor.(b) See No. 000061 in § 510.600(c) of this chapter.

Conditions of useDogs and catsAmount.(c) —(1) —(i) 1 to 2 mg per pound of body weight, repeated every 12 hours as indicated, by intramuscular or intravenous injection.

Indications for use.(ii) For reducing excessive smooth muscle contractions, such as occur in urethral spasms associated with urolithiasis.

Limitations.(iii) Federal law restricts this drug to use by or on the order of a licensed veterinarian.

HorsesAmount.(2) —(i) Administer 0.25 mg per pound of body weight, repeated every 12 hours as indicated, by intramuscular or intravenous injection.

Indications for use.(ii) For reducing excessive smooth muscle contractions, such as occur in colic spasms.

Limitations.(iii) Do not use in horses intended for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[79 FR 16183, Mar. 25, 2014]

eCFR data current as of: June 10, 2026

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