ROBERT SULLIVAN/AFP/Getty Images
2006
The company launches a program through which customers can fill a 30-day prescription of a low-cost generic drug for $4, a shot across the bow of rival drugstore chains like CVS (CVS) and Walgreens (WAG). It is now testing a program that will allow customers to get 90-day supplies of generic prescription drugs through the mail for as little as $10, taking aim at pharmacy benefit management firms like Medco.