(a) Specifications. Each 10 milliliters of suspension contains penicillin G procaine equivalent to 1 million units of penicillin G and dihydrostreptomycin sulfate equivalent to 1 gram of dihydrostreptomycin.

(b) Sponsor. See No. 042791 in §510.600(c) of this chapter.

(c) Related tolerances. See §§556.200 and 556.510 of this chapter.

(d) Conditions of use. Dairy cows—(1) Amount. One syringe per quarter at the last milking prior to drying off.

(2) Indications for use. Intramammary use to reduce the frequency of existing infection and to prevent new infections with Staphylococcus aureus in dry cows.

(3) Limitations. Not to be used within 6 weeks of freshening. Not for use in lactating cows. Milk taken from animals within 96 hours (8 milkings) after calving must not be used for feed. Animals infused with this drug must not be slaughtered for food within 60 days from the time of infusion nor within 96 hours after calving. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[57 FR 37336, Aug. 18, 1992; 57 FR 42623, Sept. 15, 1992; 79 FR 10965, Feb. 27, 2014]