21 CFR 520.2330
§ 520.2330 Sulfisoxazole tablets.
United States · 21 CFR — Food and Drugs · Status: effective
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- Citation
- 21 CFR 520.2330, § 520.2330 Sulfisoxazole tablets, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87340
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Full text
(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.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.