Costco Pharmacy · California
Costco prescription discount
Last updated September 11, 2026 · Reviewed by the LowerScript editorial team · Español
The free LowerScript card lowers the cash price of prescriptions by up to 80% at Costco Pharmacy in California. Costco is named directly on the SingleCare network that LowerScript runs on, with pharmacies inside Costco warehouses across the state's major metro areas, so you can pay a discounted cash price when you're uninsured or when the discount beats your insurance copay — no sign-up or fees. Check your medication's Costco price first, then show the card at the counter.
Save up to 80% on prescriptions at Costco Pharmacy in California with the free LowerScript card. No insurance, no sign-up, no fees.
Costco Pharmacy has a statewide presence in California, with pharmacies inside Costco warehouses in the state's major metro areas. Costco is named directly on the SingleCare network that LowerScript runs on, so you can fill your prescription there and pay a discounted cash price when it beats your copay or when you're uninsured.
How to use LowerScript at Costco
- 1
Check the price
Look up your medication to see the Costco price near you.
- 2
Show your card
Give your LowerScript card to the Costco pharmacist with the RxBIN, RxPCN and RxGRP.
- 3
Pay less
Pay the discounted price, or your copay — whichever is lower.
Frequently asked questions
Does Costco accept LowerScript?
Yes. LowerScript runs on the SingleCare network, which is accepted at Costco Pharmacy. Show your card at the counter to get the discounted cash price.
How do I use LowerScript at Costco?
Look up your medication to confirm the Costco price, then present your LowerScript card and ask the pharmacist to process it using the RxBIN, RxPCN and RxGRP on the card.
How much can I save at Costco?
Savings can reach up to 80% off the cash price, depending on the medication. Compare the LowerScript price against your copay and use whichever is lower.