CFR > 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 (parts 500 to 590) > PART 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS > 522.2610—Trimethoprim and sulfadiazine.

522.2610—Trimethoprim and sulfadiazine.

(a) Specifications. Each milliliter (mL) contains:
(1) 40 milligrams (mg) trimethoprim suspended in a solution containing 200 mg sulfadiazine; or
(2) 80 mg trimethoprim suspended in a solution containing 400 mg sulfadiazine (as the sodium salt).
(b) Sponsors. See Nos. 000061 and 000856 in § 510.600(c) of this chapter.
(c) Special considerations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
(d) Conditions of use— (1) Dogs—(i) Amount. 1 mL of the product described in paragraph (a)(1) of this section (40 mg trimethoprim and 200 mg sulfadiazine) per 20 pounds (9 kilograms) of body weight per day by subcutaneous injection.
(ii) Indications for use. For the treatment of acute urinary tract infections, acute bacterial complications of distemper, acute respiratory tract infections, acute alimentary tract infections, and acute septicemia due to Streptococcus zooepidemicus.
(2) Horses —(i) Amount. 2 mL of the product described in paragraph (a)(2) of this section (160 mg trimethoprim and 800 mg sulfadiazine) per 100 pounds (45 kilograms) of body weight per day by intravenous injection as single, daily dose for 5 to 7 days. The daily dose may also be halved and given morning and evening.
(ii) Indications for use. For use where systemic antibacterial action against sensitive organisms is required during treatment of acute strangles, respiratory tract infections, acute urogenital infections, and wound infections and abscesses.
(iii) Limitations. Not for use in horses intended for human consumption.

Code of Federal Regulations

[71 FR 30803, May 31, 2006]