Lufenuron.

(a) Specifications. Each milliliter of suspension contains 100 milligrams (mg) of lufenuron. (b) Sponsor. See No. 058198 in § 510.600(c) of this chapter. (c) Conditions of use in cats —(1) Amount. 10 mg per kilogram (4.5 mg per pound) of body weight every 6 months, by subcutaneous injection. (2) Indications for use. For control of flea populations in cats 6 weeks of age and older. (3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. [79 FR 16191, Mar. 25, 2014, as amended at 80 FR 61297, Oct. 13, 2015]