Dear Valued Customer,

Thank you for your email to Costco Wholesale.

Costco membership is not required for Costco Pharmacy prescription purchases.
However, if you would like to purchase any non-prescription items, including over the counter medicine, you will need to sign up for a Costco membership account first.

Thank you,

Susan
Costco Wholesale Corporation
memberservice@costco.com

I also called our local Costco store and asked -
They said to tell them at the entrance that you are just using the pharmacy only.

You can compare costs on their website for name brand and if there's a generic that will come up with prices also.
http://www.costco.com/Pharmacy/frame...formation&log=