Metronidazole.
21 C.F.R. § 520.1425
in effectEffective: 2024-07-01(a) Specifications. Each milliliter of suspension contains 125 milligrams (mg) metronidazole.
(b) Sponsor. See No. 051311 in § 510.600(c) of this chapter.
(c) Conditions of use—(1) Amount. Administer 25 mg per kilogram (11.3 mg per pound) of body weight twice daily for 5 consecutive days.
(2) Indications for use. For the treatment of Giardia duodenalis infection in dogs.
(3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
