Section 155A.32 - Drug product selection - restrictions1. If an authorized practitioner prescribes a drug, the pharmacist may exercise professional judgment in the interest of the patient by providing a therapeutic substitution for dispensing and sale to the patient.2. The pharmacist shall not provide a therapeutic substitution if "dispense as written" is indicated on the prescription.3. The board shall adopt rules on proper recording and notification when a therapeutic substitution is made under this section.