Tolerances for Residues of New Animal Drugs in Food; Ivermectin

Resumen

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect approval of a supplemental new animal drug application (NADA) filed by Merck Research Laboratories, Division of Merck & Co., Inc. The NADA provides for use of a 1 percent ivermectin injection for cattle for the treatment and control of gastrointestinal roundworm, lungworm, grub, lice, and mange mite infections. The supplement provides for revised tolerances for residues of ivermectin in cattle tissues.