CFR - Code of Federal Regulations Title 21

The information on this page is current as of Dec 22, 2023.

For the most up-to-date version of CFR Title 21, go to the Electronic Code of Federal Regulations (eCFR).

[Code of Federal Regulations]

[Title 21, Volume 6]

[CITE: 21CFR520.2330]

TITLE 21--FOOD AND DRUGS

CHAPTER I--FOOD AND DRUG ADMINISTRATION
DEPARTMENT OF HEALTH AND HUMAN SERVICES

SUBCHAPTER E - ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS

PART 520 -- ORAL DOSAGE FORM NEW ANIMAL DRUGS

Sec. 520.2330 Sulfisoxazole tablets.

(a) Specifications. Each tablet contains 260 milligrams (4 grains) of sulfisoxazole.

(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.

(c) Conditions of use - (1) Amount. Administer one tablet orally per 4 pounds of body weight.

(2) Indications for use. Use in dogs and cats as an aid in treatment of bacterial pneumonia and bacterial enteritis when caused by organisms sensitive to sulfisoxazole.

(3) Limitations. Repeat dosage at 24-hour intervals until 2 to 3 days after disappearance of clinical symptoms. (Administration of one-half daily dosage at 12-hour intervals or one-third daily dosage at 8-hour intervals will provide a more constant blood level.) Provide adequate supply of drinking water. If symptoms persist after using this preparation for 2 or 3 days, consult a veterinarian. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

[43 FR 60895, Dec. 29, 1978, as amended at 79 FR 28831, May 20, 2014; 87 FR 76421, Dec. 14, 2022]