Free Prescriptions Singulair® qualifies for the Merck Patient Assistance Program. A single application may provide for up to 1 year of product free of charge to eligible individuals and an individual may reapply as many times as needed. You Might Also Like Pay Only $25 Per Month December 28, 2021 Pay As Little As $0 Per Prescription December 28, 2021 Save Up To $2,400 Per Year July 2, 2018
