(1) (a) A pharmacist filling a prescription order for a specific drug by brand or proprietary name may substitute an equivalent drug product if the substituted drug product is the same generic drug type and, in the pharmacist's professional judgment, the substituted drug product is therapeutically equivalent, is interchangeable with the prescribed drug, and is permitted to be moved in interstate commerce. A pharmacist making a substitution shall assume the same responsibility for selecting the dispensed drug product as he or she would incur in filling a prescription for a drug product prescribed by a generic name; except that the pharmacist is charged with notice and knowledge of the FDA list of approved drug substances and manufacturers that is published periodically. (a.5) (I) A pharmacist filling a prescription order for a specific drug may substitute a drug in the same therapeutic class as long as the patient agrees to the substitution and the substitution is made to replace a drug that is on back order, to ensure formulary compliance with the patient's health insurance plan, or, in the case of an uninsured patient, to lower the cost to the patient for the drug while maintaining safety. (II) This subsection (1)(a.5) does not authorize: (A) The substitution of biological products, narrow therapeutic index drugs, or psychotropic drugs; or (B) A substitution when the practitioner has indicated, in the manner described in subsection (2) of this section, that the pharmacist shall not substitute a drug in the same therapeutic class as the drug prescribed. (b) (I) A pharmacist filling a prescription order for a specific biological product may substitute an interchangeable biological product for the prescribed biologic only if: (A) The FDA has determined that the biological product to be substituted is interchangeable with the prescribed biological product; and (B) The practitioner has not indicated, in the manner described in subsection (2) of this section, that the pharmacist shall not substitute an interchangeable biological product for the prescribed biological product. (II) Within a reasonable time after dispensing a biological product, the dispensing pharmacist or his or her designee shall communicate to the prescribing practitioner the specific biological product dispensed to the patient, including the name and manufacturer of the biological product. The pharmacist or designee shall communicate the information to the prescribing practitioner by making an entry into an interoperable electronic medical records system, through electronic prescribing technology, or through a pharmacy record that the prescribing practitioner can access electronically. Otherwise, the pharmacist or his or her designee shall communicate to the prescribing practitioner the name and manufacturer of the biological product dispensed to the patient using facsimile, telephone, electronic transmission, or other prevailing means except when: (A) There is no FDA-approved interchangeable biological product for the prescribed biological product; or (B) A refill prescription is not changed from the biological product dispensed on the prior filling of the prescription. (III) The pharmacy from which the biological product was dispensed must retain a written or electronic record of the dispensed biological product for at least two years after the substitution. (IV) This subsection (1)(b) does not apply to the administration of vaccines and immunizations as outlined in board rules. (2) (a) If, in the opinion of the practitioner, it is in the best interest of the patient that the pharmacist not substitute an equivalent drug, a drug in the same therapeutic class, or an interchangeable biological product for the specific drug or biological product the practitioner prescribed, the practitioner may convey this information to the pharmacist in any of the following manners: (I) Initialing by hand or electronically a preprinted box that states "dispense as written" or "DAW"; (II) Signing by hand or electronically a preprinted box stating "do not substitute" or "dispense as written"; or (III) Orally, if the practitioner communicates the prescription orally to the pharmacist. (b) The practitioner shall not transmit by facsimile his or her handwritten signature, nor preprint his or her initials, to indicate "dispense as written". (3) (a) If a pharmacist makes a substitution pursuant to subsection (1) of this section, the pharmacist shall communicate the substitution to the purchaser in writing and orally, label the container with the name of the drug or biological product dispensed, and indicate on the file copy of the prescription both the name of the prescribed drug or biological product and the name of the drug or biological product dispensed in lieu of the prescribed drug or prescribed biological product. (b) The pharmacist is not required to communicate a substitution to patients in an inpatient setting or an outpatient infusion center. (4) Except as provided in subsection (5) of this section, the pharmacist shall not substitute a drug or interchangeable biological product as provided in this section unless the drug or interchangeable biological product substituted costs the purchaser less than the drug or biological product prescribed. The prescription shall be priced for a drug, other than a biological product, as if it had been prescribed generically. (5) If a prescription drug outlet does not have in stock the prescribed drug or biological product and the only equivalent drug, drug in the same therapeutic class, or interchangeable biological product in stock is higher priced, the pharmacist, with the consent of the purchaser, may substitute the higher priced drug or interchangeable biological product. This subsection (5) applies only to a prescription drug outlet located in a town, as defined in section 31-1-101 (13). (6) The board shall maintain on its website a link to the FDA resource, if one is available, that identifies all biological products approved as interchangeable with specific biological products.
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