§ 520.90c — c Ampicillin Boluses

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

(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.

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

(d) Conditions of use in nonruminating calves—(1) Amount. 5 milligrams per pound of body weight twice daily not to exceed 4 days.

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

(3) 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.