Section 522.1684 - Pegbovigrastim(a)Specifications. Each pre-filled, single-dose syringe contains 15 milligrams of pegbovigrastim.(b)Sponsor. See No. 058198 in § 510.600(c) of this chapter.(c)Conditions of use in cattle -(1)Amount. Administer the first dose (syringe) by subcutaneous injection 7 days prior to the cow's or heifer's anticipated calving date. If necessary, the first dose may be administered within a range of 4 to 10 days prior to the anticipated calving date to accommodate management schedules. Administer the second dose (syringe) by subcutaneous injection within 24 hours after calving.(2)Indications for use. For the reduction in the incidence of clinical mastitis in the first 30 days of lactation in periparturient dairy cows and periparturient replacement dairy heifers.(3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. 81 FR 36789 , June 8, 2016, as amended at 81 FR 48702 , July 26, 2016 81 FR 36789, 6/8/2016; 81 FR 36789, 6/8/2016; as amended at 81 FR 48702, 7/26/2016