Federal Register Final rule: FDA is amending the animal drug regulations to reflect approval of three Ivy Laboratories ANADAs that provide for use of single-ingredient Type A medicated articles containing zilpaterol, melengestrol, monensin, and tylosin to make two-way, three-way, and four-way combination drug Type B and Type C medicated feeds for heifers fed in confinement for slaughter. To view this final rule, click here.
