§520.90c. Ampicillin boluses.
21 C.F.R. § 520.90c
Specifications. Each bolus contains ampicillin trihydrate equivalent to 400 milligrams of ampicillin.
Sponsor. See No. 054771 in § 510.600(c) of this chapter.
Related tolerances. See § 556.40 of this chapter.
Conditions of use in nonruminating calves—
Amount. 5 milligrams per pound of body weight twice daily not to exceed 4 days.
Indications for use. Oral treatment of bacterial enteritis (colibacillosis) caused by E. coli.
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.
Notes, amendments, and revision history
Amendments
[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. Redesignated and amended at 85 FR 18118, Apr. 1, 2020]
Authority
Authority: 21 U.S.C. 360b.
Source
Source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.
Amendments
[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. Redesignated and amended at 85 FR 18118, Apr. 1, 2020]