Section 524.230 - Buprenorphine(a)Specifications. Each milliliter (mL) of solution contains 20 milligrams (mg) buprenorphine. The drug is supplied in tubes containing 0.4 mL (8 mg) or 1.0 mL (20 mg).(b)Sponsor. See No. 058198 in § 510.600(c) of this chapter.(c)Conditions of use in cats -(1)Amount. Administer topically to the dorsal cervical area at the base of the skull a single dose of 1.2 to 3.1 mg/lb (2.7 to 6.7 mg/kg) approximately 1 to 2 hours before surgery.(2)Indications for use. For the control of postoperative pain associated with surgical procedures in cats.(3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. Buprenorphine is a Schedule III controlled substance.87 FR 58962, Sept. 29, 2022