Section 558.633 - Tylvalosin(a)Specifications. Type A medicated articles containing 77.12 grams tylvalosin per pound as tylvalosin tartrate.(b)Sponsor. See No. 066916 in § 510.600(c) of this chapter.(c)Related tolerances. See § 556.748 of this chapter.(d)Special considerations.(1) Federal law restricts medicated feed containing this veterinary feed directive (VFD) drug to use by or on the order of a licensed veterinarian. See § 558.6 for additional requirements.(2) VFDs for tylvalosin shall not be refilled.(3) Crumbled Type C medicated feeds must bear an expiration date of 7 days after the date of manufacture.(e)Conditions of use. Tylvalosin in
grams/ton | Indications for use | Limitations | Sponsor |
| (i) 38.6 | Swine: For the control of porcine proliferative enteropathy (PPE) associated with Lawsonia intracellularis infection in groups of swine in buildings experiencing an outbreak of PPE. | Feed continuously as the sole ration for 14 consecutive days. | 066916 |
| (ii) [Reserved] | | | |
81 FR 36790 , June 8, 2016, as amended at 81 FR 67153 , Sept. 30, 2016; 84 FR 12504 , Apr. 2, 2019; 87 FR 17948 , Mar. 29, 2022; 87 FR 58968 , Sept. 29, 2022 81 FR 36790, 6/8/2016; as amended at 81 FR 67153, 9/30/2016; 84 FR 12504, 4/2/2019; 87 FR 10972, 2/28/2022; 87 FR 17948, 3/29/2022; 87 FR 58968, 9/29/2022