Costco pharmacies are open to everyone. But only members get the company's deep discounts on medications.

• Costco's pharmacies are open to everyone including people without insurance.
• The retailer offers mail-order service and also takes pet prescriptions.
• But only members can take advantage of the retailer's massive drug discounts.

Costco pharmacies are open to everyone, even those who don't have insurance.

But there's a catch.

Costco does not offer non-members discounted prescription pricing.

And that discount can be steep.