21 CFR 522.90b - Ampicillin trihydrate.

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§ 522.90b Ampicillin trihydrate.
(a) Specifications. Each milliliter of aqueous suspension constituted from ampicillin trihydrate powder contains 50, 100, or 250 milligrams (mg) ampicillin equivalents.
(b) Sponsors. See Nos. 000010 and 010515 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.
[57 FR 37331, Aug. 18, 1992; 57 FR 42623, Sept. 15, 1992; 58 FR 18304, Apr. 8, 1993; 63 FR 41420, Aug. 4, 1998; 75 FR 10167, Mar. 5, 2010; 76 FR 17338, Mar. 29, 2011; 76 FR 53051, Aug. 25, 2011]

Title 21 published on 2013-04-01

The following are only the Rules published in the Federal Register after the published date of Title 21.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-04-15; vol. 79 # 72 - Tuesday, April 15, 2014
    1. 79 FR 21126 - New Animal Drugs; Ceftiofur Sodium; Gentamicin; Xylazine
      GPO FDSys XML | Text
      DEPARTMENT OF HEALTH AND HUMAN SERVICES, Food and Drug Administration
      Final rule; technical amendment.
      This rule is effective April 15, 2014.
      21 CFR Part 522

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United States Code
U.S. Code: Title 21 - FOOD AND DRUGS

Title 21 published on 2013-04-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 21 CFR 522 after this date.

  • 2014-04-15; vol. 79 # 72 - Tuesday, April 15, 2014
    1. 79 FR 21126 - New Animal Drugs; Ceftiofur Sodium; Gentamicin; Xylazine
      GPO FDSys XML | Text
      DEPARTMENT OF HEALTH AND HUMAN SERVICES, Food and Drug Administration
      Final rule; technical amendment.
      This rule is effective April 15, 2014.
      21 CFR Part 522