(a) A person who engages in wholesale distribution of prescription drugs in this state for use in humans is exempt from this subchapter if the person is exempt under:
(1) the Prescription Drug Marketing Act of 1987 (21 U.S.C. Section 353(c)(3)(B));
(2) the regulations adopted by the secretary to administer and enforce that Act; or
(3) the interpretations of that Act set out in the compliance policy manual of the United States Food and Drug Administration.
(b) An exemption from the licensing requirements under this section does not constitute an exemption from the other provisions of this chapter or the rules adopted under this chapter to administer and enforce the other provisions of this chapter.