Costco Pharmacy · Price Comparison 2026
Guanfacine at Costco Pharmacy: ~$216
Costco pharmacy prices are competitive, but membership is required. Script Unlock lets you compare Costco against competing local pharmacies. When independent pharmacies compete on Script Unlock, the same Guanfacine (Guanfacine Hydrochloride) is available from $100 — saving you $116 per fill.
Costco Pharmacy Price
~$216
typical cash price
Competing Pharmacies
From $100
when pharmacies compete
You Could Save
$116
vs Costco Pharmacy
Free · No account needed · Takes 30 seconds
Don't Pay Costco Pharmacy's $216 for Guanfacine
Pharmacies compete. You save $116. Takes 30 seconds.