Mississippi Code
Article 1 - Livestock Biologics and Drug Law
§ 69-17-5. Article not applicable where preparations are dispensed by a licensed veterinarian

Nothing in this article shall apply to the dispensing of biologics, drugs, remedies, tonics, medicines or preparations hereinabove referred to by a licensed veterinarian if same is delivered by the licensed practitioner in the course of his professional practice or upon his prescription.