Free Prescription, $75 Off Refills First prescription of Onsolis is free and all refills will only cost $25. The maximum savings per prescription is $75. There is no sign-up or physical coupon. The pharmacy’s system is set up to bill Meda Pharmaceuticals for the discount. You Might Also Like $0 Copay May 21, 2018 Save Up To $165 May 21, 2018 Save Up To $50 On Rx May 21, 2018