Costco Medicine: Pharmacy Prices, Prescriptions, Services & Savings Guide Costco Pharmacy is known for offering prescription medicines and other health products with competitive pricing. Its pharmacy services include prescription refills, prescription transfers, mail-order options, vaccinations and medication price information. One important point is that a Costco membership is not required to purchase prescriptions from Costco Pharmacy . However, Costco members can access the Costco Member Prescription Program (CMPP), a separate prescription discount program that may provide lower prices on eligible medicines. What Is Costco Pharmacy? Costco Pharmacy is the pharmacy service operated by Costco. Customers can fill prescriptions at participating Costco pharmacies and can also use online services for prescription management and mail-order options. Costco provides prescription pricing information online, allowing customers to search for a medication and, when available, c...