(a) Specifications. Each milliliter of solution contains spectinomycin dihydrochloride pentahydrate equivalent to 50 milligrams (mg) spectinomycin.

(b) Sponsors. See Nos. 016592, 054771, and 061133 in § 510.600(c) of this chapter.

(c) Related tolerances. See § 556.600 of this chapter.

(d) Conditions of use in swine—(1) Amount. Administer 5 mg per pound (lb) of body weight orally twice daily for 3 to 5 days.

(2) Indications for use. For the treatment and control of porcine enteric colibacillosis (scours) caused by E. coli susceptible to spectinomycin in pigs under 4 weeks of age.

(3) Limitations. Do not administer to pigs over 15 lb body weight or over 4 weeks of age. Do not administer within 21 days of slaughter. Federal law restricts this drug to use by or on the order of a licensed veterinarian.