Montana Title 33. Insurance and Insurance Companies § 33-22-176. Limitation on copayments

A pharmacy benefit manager or third-party payer may not charge a patient a copayment that exceeds the cost of the prescription drug. If a patient pays a copayment, the dispensing provider or pharmacy may retain the adjudicated reimbursement and the pharmacy benefit manager or third-party payer may not alter the adjudicated reimbursement.