Skip to main content
Find a Lawyer

Code of Federal Regulations Title 21. Food and Drugs § 21.522.90b Ampicillin trihydrate powder for injection

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) Specifications. Each milliliter of aqueous suspension constituted from ampicillin trihydrate powder contains 200, 250, or 400 milligrams (mg) ampicillin equivalents.

(b) Sponsors. See Nos. 000010 and 042791 in § 510.600(c) of this chapter.

(c) Related tolerances. See § 556.40 of this chapter.

(d) Conditions of use—

(1) Dogs and cats—

(i) Amount. 3 mg/pound (lb) of body weight twice daily by subcutaneous or intramuscular injection.

(ii) Indications for use. For treatment of strains of organisms susceptible to ampicillin and associated with respiratory tract infections, urinary tract infections, gastrointestinal infections, skin infections, soft tissue infections, and postsurgical infections.

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

(2) Cattle—

(i) Amount. 2 to 5 mg/lb of body weight once daily by intramuscular injection.

(ii) Indications for use. For treatment of respiratory tract infections caused by organisms susceptible to ampicillin, bacterial pneumonia (shipping fever, calf pneumonia, and bovine pneumonia) caused by Aerobacter spp., Klebsiella spp., Staphylococcus spp., Streptococcus spp., Pasteurella multocida, and Escherichia coli.

(iii) Limitations. Do not treat cattle for more than 7 days. Milk from treated cows must not be used for food during treatment and for 48 hours (4 milkings) after the last treatment. Cattle must not be slaughtered for food during treatment and for 144 hours (6 days) after the last treatment. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Previous Part of Code Next Part of Code
Back to Chapter List

Cite this article: FindLaw.com - Code of Federal Regulations Title 21. Food and Drugs § 21.522.90b Ampicillin trihydrate powder for injection - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-21-food-and-drugs/cfr-sect-21-522-90b/

FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.

Was this helpful?

Welcome to FindLaw's Cases & Codes

A free source of state and federal court opinions, state laws, and the United States Code. For more information about the legal concepts addressed by these cases and statutes, visit FindLaw’s Learn About the Law.

Go to Learn About the Law

Latest Blog Posts

For Legal Professionals

Learn About The Law

Get help with your legal needs

FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.

Go to Learn About the Law

Need to Find an Attorney?

Search our directory by legal issue

Enter information in one or both fields (Required)

Copied to clipboard