Wal mart has fewer stores than rite aid. Granted walgreens and cvs combined have a hell of alot of stores.
However it there over a hundred large retail stores (chains) that are nestled in important urban and demographic locations. You cannot sell a pharmacutical product in less than 10% of Pharmacutical retail chains and claim it is a success.
It is only in about 3% of all retail stores across America.
Wal mart shelves are lined with all sorts of junk from twaiwan and korea in Walmart, complete junk. So it's a micro dot on some gigantic shelve in WM somewhere out of reach more than likely. So what!
Back to reality there is 97% of the Retailers who are not stocking it. WM has not even got a store in chicago.