(1) There are exempted from this part: The sale of legend drugs by legitimate wholesale druggists to registered pharmacists and the sale by registered pharmacists to duly licensed physicians, dentists and veterinarians; and
(2) The sale of legend drugs by registered pharmacists to duly licensed optometrists and the possession and use of legend drugs by duly licensed optometrists as authorized by § 63-8-102.
(3) This part shall apply to the state of Tennessee, its departments, agencies and employees and to the political subdivisions of the state and their departments, agencies and employees, except the department of health and local health departments, which shall be subject to § 63-10-405.