Save Up To $300 Per Month Most eligible patients enrolled in the Viread® Co-pay Coupon Program pay a $0 co-pay on prescriptions. The program will cover the out-of-pocket costs for your Viread® prescription up to $300 every month for the next 12 months (max. $5000/year). You Might Also Like Savings Program July 3, 2018 Pay As Little As $0 Per Month. December 14, 2021 $2 Coupon July 3, 2018