The Costco Member Prescription Program (CMPP) is a prescription savings program for you and your family. It allows Members who have no prescription drug insurance or whose insurance does not cover all of their prescription medication to be the beneficiaries of Costco's commitment to member service, value, quality and product confidence. Costco is committed to passing on savings to the member and are able to do that by monitoring expenses taking lower markups, and negotiating manufacturer/supplier discounts and passing those savings back to Costco members.

How It Works

To Join

Enroll at any participating Costco pharmacy. There is no additional charge for Costco members to participate in the Program.

This program is NOT insurance. The program is a value added benefit of Costco membership that provides eligible Costco members and their eligible dependents the ability to obtain lower prices for certain prescriptions on the Program's Preferred Drug List.


Savings are estimated up to 80% off and calculated at the time of sale. View some examples of savings that you and your family can begin taking advantage of immediately. The amount of any price reduction is determined at the time of purchase, and may change from time to time. Contact your local Costco Pharmacist for current Program pricing information.

Frequently Asked Questions

Answers to your Frequently Asked Questions about the Costco Member Prescription Program.

Pet Medication

Costco Member Prescription Program is also open for Costco member pet medications. Contact your local Costco Pharmacy for details.