Business · 19/11/1997Updated: 10/17/2026 · 1 min read

FDA Approves New Animal Drug for Use in Animal Feeds, Allows Immediate Withdrawal of Chlortetracycline

The US Food and Drug Administration (FDA) has amended its regulations to reflect the approval of a supplemental new animal drug application (NADA) filed by Hoffmann-La Roche, Inc. for the use of chlortetracycline (CTC) in cattle feeds, allowing for immediate withdrawal of the antibiotic following certain uses.