Regulations last checked for updates: Nov 26, 2024

Title 21 - Food and Drugs last revised: Nov 21, 2024
§ 558.582 - Sulfamerazine.

(a) Specifications. Type A medicated articles containing 99 percent sulfamerazine.

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

(c) Related tolerances. See § 556.660 of this chapter.

(d) Special considerations. (1) Federal law restricts medicated feed containing this veterinary feed directive (VFD) drug to use by or on the order of a licensed veterinarian. See § 558.6 for additional requirements.

(2) The expiration date of VFDs for sulfamerazine medicated feeds must not exceed 6 months from the date of issuance. VFDs for sulfamerazine shall not be refilled.

(e) Conditions of use. It is used in fish feed for as follows:

Sulfamerazine
grams/ton
Combination in
grams/ton
Indications for use Limitations Sponsor
(1) To deliver 10 grams of sulfamerazine per 100 pounds of fish per dayRainbow trout, brook trout, and brown trout: For control of furunculosisFormulate to deliver 10 grams of sulfamerazine per 100 pounds of fish per day. Treat for not more than 14 days. Do not treat within 3 weeks of marketing or stocking in stream open to fishing054771
(2) [Reserved]
[81 FR 95013, Dec. 27, 2016]
source: 40 FR 13959, Mar. 27, 1975, unless otherwise noted.
cite as: 21 CFR 558.582