21 CFR § 520.1921Chapter I

§ 520.1921 Prochlorperazine, isopropamide, and neomycin.

Primary source

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.

Full Text

Specifications.(a) Each capsule contains either:

(1) Capsule No. 1: 3.33 milligrams of prochlorperazine (as the dimaleate), 1.67 milligrams of isopropamide (as the iodide), and 25 milligrams of neomycin base (as the sulfate); or

(2) Capsule No. 3: 10 milligrams of prochlorperazine (as the dimaleate), 5 milligrams of isopropamide (as the iodide), and 75 milligrams of neomycin base (as the sulfate).

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

Conditions of use in dogsAmount.(c) —(1) Administer capsules orally twice daily to dogs as follows:

Indications for use.(2) For the treatment infectious bacterial gastroenteritis associated with emotional stress.

Limitations.(3) Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Animal weight (pounds)Number of capsules per dose Capsule No. 1Capsule No. 3 10 to 201 20 to 302 Over 3031 Over 602

[49 FR 14103, Apr. 10, 1984, as amended at 56 FR 50653, Oct. 8, 1991; 60 FR 55659, Nov. 2, 1995; 79 FR 28827, May 20, 2014]

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.