A VFD feed can only be used under the professional supervision of a licensed veterinarian VFD drug and combination VFD drug
What is a “VFD drug”?
A”VFD drug” is a drug intended for use in or on animal feed that is limited to use under the professional supervision of a licensed veterinarian.
A “combination VFD drug” is an approved combination of new animal drugs intended for use in or on animal feed under the professional supervision of a licensed veterinarian, and at least one of the new animal drugs in the combination is a VFD drug.