Target said all of its 1,287 pharmacies across the United States would now offer some generic drugs for $4. It was not immediately clear which generic drugs were on Target's list. Previously, the discount retailer had matched the list of drugs being sold for $4 at Wal-Mart.
Wal-Mart Stores Inc., the world's largest retailer, started selling certain generic drugs for $4 per prescription in Florida in September. Since then, Wal-Mart has brought the $4 drugs to 37 more states and said it plans to extend the plan to additional states as fast as it can.
The cut-price drugs are now available in 3,009 Wal-Mart pharmacies. Wal-Mart has about 3,960 U.S. stores.
The drugstore companies and analysts have said they see little threat from Wal-Mart's plan, noting that cash prescriptions account for only a small portion of their profits.
Shares of Minneapolis-based Target, which operates 1,494 stores in 47 U.S. states, slipped 28 cents to $57.94 on the New York Stock Exchange, while shares of Wal-Mart rose 37 cents to $47.87.