(b) Except as provided in section twelve-b of this article, the following acts shall be prohibited: (1) The falsification of any label upon the immediate container, box and/or package containing a drug; (2) the substitution or the dispensing of a different drug in lieu of any drug prescribed in a prescription without the approval of the practitioner authorizing the original prescription: Provided, That this shall not be construed to interfere with the art of prescription compounding which does not alter the therapeutic properties of the prescription or appropriate generic substitute; (3) the filling or refilling of any prescription for a greater quantity of any drug or drug product than that prescribed in the original prescription without a written or electronic order or an oral order reduced to writing, or the refilling of a prescription without the verbal, written or electronic consent of the practitioner authorizing the original prescription.