§ 520.90f - Ampicillin boluses.

§ 520.90f Ampicillin boluses.

(a) Specifications. Each bolus contains ampicillin trihydrate equivalent to 400 milligrams of ampicillin.

(b) Sponsors. See sponsor numbers in § 510.600(c) of this chapter as follows:

(1) No. 055529 for use as in paragraph (d)(1) of this section;

(2) No. 054771 for use as in paragraph (d)(2) of this section.

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

(d) Conditions of use. Nonruminating calves -

(1) Amount. 5 milligrams per pound of body weight twice daily for up to 5 days.

(i) Indications for use. Oral treatment of colibacillosis caused by Escherichia coli, bacterial enteritis caused by Salmonella spp., and bacterial pneumonia caused by Pasteurella spp.

(ii) Limitations. Treated calves must not be slaughtered for food during treatment and for 15 days after the last treatment. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

(2) Amount. 5 milligrams per pound of body weight twice daily not to exceed 4 days.

(i) Indications for use. Oral treatment of bacterial enteritis (colibacillosis) caused by E. coli.

(ii) Limitations. Treated calves must not be slaughtered for food during treatment and for 7 days after the last treatment. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[57 FR 37322, Aug. 18, 1992, as amended at 58 FR 61016, Nov. 19, 1993; 60 FR 55659, Nov. 2, 1995; 79 FR 28818, May 20, 2014]