Washington Prescription Drug Program (WPDP) / ArrayRx Discount Card

The Washington Prescription Drug Program (WPDP), administered by the Health Care Authority, provides evidence-based prescription drug guidance to state agencies that purchase drugs on behalf of Washington residents. Through the ArrayRx Solutions multi-state purchasing partnership, WPDP also makes the ArrayRx Discount Card available free to all Washingtonians. The card offers discounts on FDA-approved prescription drugs and over-the-counter medications at a large network of pharmacies, plus two mail-order options (Postal Prescription Services and Costco). It is intended for people without prescription drug coverage, with limited or high-deductible coverage, between insurance plans, or whose insurance does not cover certain drugs/vaccines. Medicare beneficiaries without Part D may use the card; it cannot be combined with insurance, Medicaid, or Medicare pharmacy benefits, or applied to copays. ArrayRx is a multi-state program also serving residents of Oregon, Nevada, Connecticut, and Arizona.