Section 522.956 - Florfenicol and flunixin(a)Specifications. Each milliliter (mL) of solution contains 300 milligrams (mg) florfenicol and 16.5 mg flunixin (27.37 mg flunixin meglumine).(b)Sponsor. See No. 000061 in § 510.600(c) of this chapter for use as in paragraph (d) of this section.(c)Tolerances. See §§ 556.283 and 556.286 of this chapter.(d)Conditions for use in cattle -(1)Amount. 40 mg florfenicol/kg body weight (BW) and 2.2 mg flunixin/kg BW (equivalent to 2 mL/15 kg BW or 6 mL/100 lbs) once, by subcutaneous injection.(2)Indications for use. For treatment of bovine respiratory disease (BRD) associated with Mannheimia haemolytica, Pasteurella multocida, Histophilus somni, and Mycoplasma bovis, and control of BRD-associated pyrexia in beef and non-lactating dairy cattle.(3)Limitations. Animals intended for human consumption must not be slaughtered within 38 days of treatment. This drug product is not approved for use in female dairy cattle 20 months of age or older, including dry dairy cows. Use in these cattle may cause drug residues in milk and/or in calves born to these cows. A withdrawal period has not been established in preruminating calves. Do not use in calves to be processed for veal. Federal law restricts this drug to use by or on the order of a licensed veterinarian. 75 FR 1275 , Jan. 11, 2010, as amended at 75 FR 54018 , Sept. 3, 2010; 79 FR 18158 , Apr. 1, 2014