1. a. If an authorized prescriber prescribes, in writing, electronically, by facsimile, or orally, a drug by its brand or trade name, the pharmacist may exercise professional judgment in the economic interest of the patient by selecting a drug product with the same generic name and demonstrated bioavailability as the drug product prescribed for dispensing and sale to the patient. If the cost of the prescription or any part of it will be paid by expenditure of public funds authorized under chapter 249A, the pharmacist shall exercise professional judgment by selecting a drug product with the same generic name and demonstrated bioavailability as the drug product prescribed for dispensing and sale.

 b. If an authorized prescriber prescribes a biological product, the pharmacist may exercise professional judgment in the economic interest of the patient by selecting a biological product that is an interchangeable biological product for the biological product prescribed for dispensing and sale to the patient. If the cost of the prescription or any part of it will be paid by expenditure of public funds authorized under chapter 249A, the pharmacist shall exercise professional judgment by selecting a biological product that is an interchangeable biological product for the biological product prescribed for dispensing and sale.
 2. The pharmacist shall not exercise the drug or biological product selection described in this section if any of the following is true:

 a. The prescriber specifically indicates that no drug or biological product selection shall be made.
 b. The person presenting the prescription indicates that only the specific drug product prescribed should be dispensed. However, this paragraph does not apply if the cost of the prescription or any part of it will be paid by expenditure of public funds authorized under chapter 249A.
 3. If selection of a generically equivalent drug product or an interchangeable biological product is made under this section, the pharmacist making the selection shall inform the patient and note that fact and the name of the manufacturer of the selected drug on the prescription presented by the patient or the patient’s adult representative or transmitted by the prescriber or the prescriber’s authorized agent.
 4. a. Within five business days following the dispensing of a biological product, the dispensing pharmacist or the pharmacist’s designee shall make an entry of the specific biological product provided to the patient, including the name of the biological product and the manufacturer. The entry shall be electronically accessible to the prescriber through one of the following means:

 (1) An interoperable electronic medical records system.
 (2) An electronic prescribing technology.
 (3) A pharmacy benefit management system.
 (4) A pharmacy record.
 b. An entry into an electronic records system as described in this subsection is presumed to provide notice to the prescriber. If the entry is not made electronically, the pharmacist shall communicate the name and manufacturer of the biological product dispensed to the prescriber using facsimile, telephone, electronic transmission, or other prevailing means.
 c. Communication under this subsection shall not be required in either of the following circumstances:

 (1) There is no federal food and drug administration-approved interchangeable biological product for the product prescribed.
 (2) A refill prescription is not changed from the product dispensed on the prior filling of the prescription.