21 CFR §522.390
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
- (a)Specifications. Each milliliter of solution contains 100 milligrams of chloramphenicol.
- (b)Sponsor. See Nos. 054771 and 069043 in § 510.600(c) of this chapter.
- (c)Conditions of use. Dogs—(1) Amount. 5 to 15 milligrams per pound of body weight, intramuscularly or intravenously, every 6 hours. In severe infections, use 4 to 6 hour treatment intervals the first day. If no response is obtained in 3 to 5 days, discontinue use and reevaluate diagnosis.
- (2)Indications for use. Treatment of infections of the respiratory tract, the urinary tract, and enteritis and tonsillitis caused by organisms susceptible to chloramphenicol.
- (3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. Federal law prohibits the extralabel use of this drug in food-producing animals.