40 Pa.C.S. § 4004 – Certain payment structures prohibited

(a) Prorated dispensing fees.— A health insurance plan providing prescription drug coverage may not use payment structures incorporating prorated dispensing fees.
(b) Full payment.— Dispensing fees for a partial supply or refilled prescriptions shall be paid in full for each maintenance medication dispensed, regardless of any prorated copay for the beneficiary or fee paid for alignment services.