$0 Co-Pay Per Month Most insured patients qualify to get a $0 co-pay every month on their Invokana prescriptions. The CarePath Savings Card is subject to a $3000 annual program benefit. You Might Also Like Pay Only $5 Per Dose May 19, 2018 Pay As Little As $0 May 19, 2018 Pay As Little As $50 For First Dose November 26, 2021