If you want to understand the immediate impact of Wal-Mart's recent announcement that it will charge only $4 per prescription for nearly 300 generic drugs, just ask Nick Patel, R.Ph. Patel's West Coast Pharmacy, Tampa, Fla., is located one block from a Wal-Mart location and suddenly finds itself at the epicenter of a new healthcare debate. "I've had people come in with the list," Patel reported to Drug Topics. "But so far, I haven't lost any customers." Like many in the industry-especially those in the Tampa area-Patel is watching closely to see what happens next.