(a) “Brand name” means the proprietary or trade name selected by the manufacturer and placed upon a drug, its container, label or wrapping at the time of packaging;
(b) “Generic name” means the chemical name or formula or the established name designated in the official United States Pharmacopeia, official Homeopathic Pharmacopeia of the United States, or official National Formulary or any supplement thereof;
(c) “Substitute” means to dispense with the prescriber's express authorization a different drug product in place of the drug ordered or prescribed;
(d) “Therapeutically equivalent” means drugs that are approved by the Federal Drug Administration for interstate distribution and that will provide essentially the same efficiency and toxicity when administered to an individual in the same dosage regimen; and
(e) “Pharmacy,” “pharmacist” and “medical practitioner” shall have the same meanings as those contained in section 141 of Title 27, Virgin Islands Code.