New Animal Drugs for Use in Animal Feeds; Chlortetracycline and Sulfamethazine; Chlortetracycline, Procaine Penicillin, and Sulfamethazine

摘要

The Food and Drug Administration (FDA) is amending the animal drug regulations to reflect the withdrawal of approval of those parts of a new animal drug application (NADA) for a 3-way, fixed-ratio, combination drug Type A medicated article that pertain to use of the procaine penicillin component for production indications in swine and to reflect the reformulation of the Type A medicated article as a 2- way, fixed-ratio, combination drug product without penicillin.