Are free antibiotics good business?

First, Wal-Mart, Target, Dillons and others said they’d offer certain prescription drugs for $4 for a 30-day supply.

The next big marketing move was offering 90-day supplies for $10.

Now comes Giant Food. Through March 21, it’s offering 14-day supplies of the most commonly prescribed generic antibiotics for free. “With cold and flu season in full-swing, we want to do what we can to help keep you and your family feeling your best during the winter months,” the company says.

And to keep you coming back.