An insurer issuing or renewing accident and health insurance policies shall allow its insureds to purchase an up-to-90-day supply of covered prescription drugs on the covered person‘s health plan formulary at one time at a pharmacy of the insured‘s choice within the insurer’s network, provided that the insured can demonstrate that such drug has been taken by the insured for a continuous period of one year and provided that such drug is not subject to the health plan’s utilization management, prior authorization, or pre-certification requirements. Controlled substances as identified by the United States Drug Enforcement Administration are exempt from this section. Nothing in this section shall be construed to limit the health plan’s ability to establish co-payments, coinsurance deductibles, or other member cost shares. A retail pharmacy dispensing a 90-day supply of covered prescription drugs under this section shall comply with any specified terms, conditions, and reimbursement rate which the plan may require for mail order pharmacies that fill 90-day prescriptions.