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21 C.F.R. § 522.2200   Sulfachlorpyridazine.

Title 21 - Food and Drugs

Title 21: Food and Drugs
PART 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS

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§ 522.2200   Sulfachlorpyridazine.

(a) Chemical name. N¹ -(6-Chloro-3-pyridazinyl) sulfanilamide.

(b) Specifications. Melting point range 190 °C to 191 °C.

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

(d) Related tolerances. See §556.630 of this chapter.

(e) Conditions of use. It is used for injection into calves as follows:

(1) Amount. 30 to 45 milligrams per pound of body weight per day.

(2) Indications for use. Treatment of diarrhea caused or complicated by E. coli (colibacillosis).

(3) Limitations. Administer as the sodium salt of sulfachlorpyridazine intravenously in aqueous solution for 1 to 5 days in divided doses twice daily; treated calves must not be slaughtered for food during treatment or for 5 days after the last treatment. A withdrawal period has not been established for this product in preruminating calves. Do not use in calves to be processed for veal.

[40 FR 13858, Mar. 27, 1975, as amended at 50 FR 41489, Oct. 11, 1985; 70 FR 16935, Apr. 4, 2005]

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