[Code of Federal Regulations]
[Title 21, Volume 6]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR526.1130]

[Page 322]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 526--INTRAMAMMARY DOSAGE FORMS--Table of Contents
 
Sec.  526.1130  Hetacillin potassium for intramammary infusion.

    (a) Specifications. Each 10 milliliter syringe contains hetacillin 
potassium equivalent of 62.5 milligrams of ampicillin.
    (b) Sponsor. See No. 000856 in Sec.  510.600(c) of this chapter.
    (c) Conditions of use. Lactating cows--(1) Amount. 10 milliliters of 
hetacillin potassium equivalent to 62.5 milligrams ampicillin into each 
infected quarter. Repeat at 24-hour intervals until a maximum of three 
treatments has been given.
    (2) Indications for use. Treating acute, chronic, or subclinical 
bovine mastitis in lactating cows caused by susceptible strains of 
Streptococcus agalactiae, Streptococcus dysgalactiae, Staphylococcus 
aureus, and Escherichia coli.
    (3) Limitations. If definite improvement is not noted within 48 
hours after treatment, the causal organism should be further 
investigated. Milk that has been taken from animals during treatment and 
for 72 hours (6 milkings) after the latest treatment must not be used 
for food. Treated animals must not be slaughtered for food until 10 days 
after the latest treatment. Federal law restricts this drug to use by or 
on the order of a licensed veterinarian.

[57 FR 37335, Aug. 18, 1992]