The Henry Ford Medical Group filled more than 500,000 prescriptions during the first year of one of the largest ePrescribing projects in the country, according to sponsors. The ePrescribe Initiative is a joint initiative of General Motors, Ford and DaimlerChrysler and the Henry Ford Health System. The technical aspects of the project are being managed by Medco. Organizers certainly have reason to be pleased. They claim more than 80,000 prescriptions were changed after drug-interaction alerts. The generic use rate at Henry Ford also climbed 7.3 percent, saving the system about $3.1 million.