Founded in 1962, Wal-Mart Pharmacy is a chain of drug stores operated by Wal-Mart Stores Inc., a multinational corporation that runs a chain of discount department stores and a chain of warehouse stores. Based in Glendale, Ariz., the company serves customers and members through more than 8,600 retail units under 59 different banners in 15 countries, catering a range of apparel, electronics,...