(a) Any person who knowingly or intentionally possesses, uses or consumes any prescription drug that is not a controlled substance but for which a prescription is required shall be guilty of an unclassified misdemeanor, unless:
(1) The possession, use or consumption of such substance was by a person who obtained the substance directly from, or pursuant to, a valid prescription or order of a licensed practitioner;
(2) The possession or transfer of such substance was for medical or scientific use or purpose by persons included in any of the following classes, or the agents or employees of such persons, for use in the usual course of their business or profession or in the performance of their official duties:
a. Pharmacists.
b. Practitioners.
c. Persons who procure controlled substances in good faith and in the course of professional practice only, by or under the supervision of pharmacists or practitioners employed by them, or for the purpose of lawful research, teaching, or testing, and not for resale.
d. Hospitals that procure controlled substances for lawful administration by practitioners, but only for use by or in the particular hospital.
e. Officers or employees of state, federal, or local governments acting in their official capacity only, or informers acting under their jurisdiction.
f. Common carriers.
g. Manufacturers, wholesalers, and distributors.
h. Law-enforcement officers for bona fide law-enforcement purposes in the course of an active criminal investigation.
(3) The possession or transfer is otherwise authorized by this chapter.
(b) [Repealed.]
(c) A violation of subsection (a) of this section by a person who delivers or intends to deliver the prescription drug to another is a class G felony.
(d) A violation of subsection (a) of this section by a person who delivers or intends to deliver the prescription drug to another and an aggravating factor applies, is a class F felony.
(e) Affirmative defenses. — (1) In any prosecution under this section, it is an affirmative defense that the prescription drug was possessed by the person while transporting the prescription drug to a member of the person's household who possessed a valid prescription for the drug, and the prescription was in the original container in which it was dispensed or packaged, a pill box, or other daily pill container.
(2) In any prosecution under this section, it is an affirmative defense that the prescription drug was possessed or consumed within the residence of the person, that a member of the person's household possessed a valid prescription for the drug, that the possession or consumption by the person was for the purpose of treating an illness and that the drug in question was approved for the specific illness.
(f) Proof. — In any prosecution under this section, proof that a substance is a particular prescription drug may be inferred from its labeling and any representations on the substance. Proof by testimony from a scientist is not required.