They don't impose a limit on daily purchases with Rx coupons so if you transfer 4 prescriptions and take them 4 of these coupons, you'll have $100 to spend on free groceries and other items with the gift cards.
It shows an expiration date of "2/29/2015" but perhaps they meant 2/29 or 3/1. On my 2915 calendar, there is no Leap Day. ;-)
Most CVS and Kroger locations in Columbus area will match this offer you take these coupons to them. But Kroger has limits -- one per day and some "lifetime limit." CVS will sometimes give you grief despite saying they accept competitor coupons. See Rx4Less.net for details.
These should be in the store (at least the Powell location) through Wednesday, Feb. 4.