A. An individual health insurance policy, health care plan or certificate of health insurance that is delivered, issued for delivery or renewed in this state and that provides a prescription drug benefit shall allow an insured to fill or refill a prescription for less than a thirty-day supply of the prescription drug, and apply a prorated daily copayment or coinsurance for the fill or refill, if:

(1)     the prescribing practitioner or the pharmacist determines the fill or refill to be in the best interest of the insured;

(2)     the insured requests or agrees to receive less than a thirty-day supply of the prescription drug; and

(3)     the reduced fill or refill is made for the purpose of synchronizing the insured’s prescription drug fills.

B. An individual health insurance policy, health care plan or certificate of health insurance that offers a prescription drug benefit shall not:

(1)     deny coverage for the filling of a chronic medication when the fill is made in accordance with a plan to synchronize multiple prescriptions for the insured pursuant to Subsection A of this section established among the insurer, the prescribing practitioner and a pharmacist. The insurer shall allow a pharmacy to override any denial indicating that a prescription is being refilled too soon for the purposes of medication synchronization; and

(2)     prorate a dispensing fee to a pharmacy that fills a prescription with less than a thirty-day supply of prescription drug pursuant to Subsection A of this section. The insurer shall pay in full a dispensing fee for a partially filled or refilled prescription for each prescription dispensed, regardless of any prorated copayment or coinsurance that the insured may pay for prescription synchronization services.