21 C.F.R. § 522.2240 Sulfaethoxypyridazine.
Title 21 - Food and Drugs
(a) Chemical name. N1 -(6-Ethoxy-3-pyridazinyl) sulfanilamide. (b) Specifications. Melting point range of 180 °C to 186 °C. (c) Sponsor. See No. 053501 in §510.600(c) of this chapter. (d) Related tolerances. See §556.650 of this chapter. (e) Conditions of use. It is used for injection into cattle as follows: (1) Amount. 2.5 grams per 100 pounds of body weight per day. (2) Indications for use. Treatment of respiratory infection (pneumonia, shipping fever), foot rot, calf scours; as adjunctive therapy in septicemia accompanying mastitis and metritis. (3) Limitations. Administer intravenously for not more than 4 days; or first treatment may be followed by 3 days of treatment with sulfaethoxypyridazine in drinking water, feed, or tablet in accordance with §558.579(e) or §§520.2240a(e) and 520.2240b(e) of this chapter; as sodium sulfaethoxypyridazine; do not treat within 16 days of slaughter; as sole source of sulfonamide; milk that has been taken from animals during treatment and for 72 hours (6 milkings) after the latest treatment must not be used for food; for use by or on the order of a licensed veterinarian. [40 FR 13858, Mar. 27, 1975, as amended at 41 FR 11011, Mar. 15, 1976; 67 FR 78355, Dec. 24, 2002]
Title 21: Food and Drugs
PART 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS
§ 522.2240 Sulfaethoxypyridazine.
