§ 520.445a - Chlortetracycline bisulfate/sulfamethazine bisulfate soluble powder.

(a) Specifications. Each pound contains chlortetracycline bisulfate equivalent to 102.4 grams of chlortetracycline hydrochloride with sulfamethazine bisulfate equivalent to 102.4 grams of sulfamethazine.

(b) Sponsor. See No. 053501 in § 510.600(c) of this chapter.

(c) Related tolerances. See §§ 556.150 and 556.670 of this chapter.

(d) Conditions of use. Swine—Used in drinking water as follows:

(1) Amount. 250 milligrams of chlortetracycline with 250 milligrams of sulfamethazine per gallon.

(2) Indications for use. Prevention and treatment of bacterial enteritis; aid in the reduction of the incidence of cervical abscesses; aid in the maintenance of weight gains in the presence of bacterial enteritis and atrophic rhinitis.

(3) Limitations. Not to be used for more than 28 consecutive days; withdraw 15 days before slaughter; as sole source of chlortetracycline and sulfonamide.