Pay $0 Co-Pay Per Fill Commercially insured patients may pay a $0 co-pay on their Zoladex prescriptions by signing up for the Zoladex Co-pay Card. You Might Also Like Pay As Little As $25 Co-Pay December 10, 2021 Pay As Little As $1 July 3, 2018 Pay Only $5 For Refills July 3, 2018