For the purposes of this chapter, the term:
(1) “FDA” means the federal Food and Drug Administration.
(2) “Off-label use” means the use of a prescription drug for human use to treat a condition that is not included in the labeling for that medication, as approved by the federal Food and Drug Administration.
(3) “Prescriber” means a person who is licensed, registered, or otherwise authorized by the District to prescribe and administer prescription drugs for human use in the course of a professional practice.