Federal Register Notice: FDA is withdrawing approval of three NADAs for intermediate premixes used to manufacture Type C medicated feeds: Tylosin 10 Premix (tylosin), Tylan 40 Sulfa-G (tylosin and sulfamethazine), and Swine Guard-BN (pyrantel). The products are no longer manufactured or marketed. In another final rule, the agency also removes the portion of the Federal Register that reflected approval of the premixes. To view this notice, click here.
