21 CFR § 522.90cChapter I

§ 522.90c Ampicillin sodium.

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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 aqueous solution constituted from ampicillin sodium powder contains 300 milligrams (mg) ampicillin equivalents.

(b) See Nos. 042791 and 054771 in § 510.600(c) of this chapter.

Conditions of use in horsesAmount(c) —(1) : 3 mg per pound of body weight twice daily by intravenous or intramuscular injection.

Indications for use.StaphylococcusStreptococcusS. equiEscherichia coliProteus mirabilisStaphylococcusStreptococcusE. coliP. mirabilis(2) For the treatment of respiratory tract infections (pneumonia and strangles) due to spp., spp. (including ), , and , and skin and soft tissue infections (abscesses and wounds) due to spp., spp., , and , when caused by susceptible organisms.

Limitations.(3) 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.

[72 FR 45158, Aug. 13, 2007, as amended at 79 FR 16184, Mar. 25, 2014; 86 FR 57997, Oct. 20, 2021]

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.