Flow of money from insulin sales (IMAGE) University of Southern California Caption USC Schaeffer Center research reveals who benefits when drug manufacturers offer savings on insulin. Credit Stephanie Hedt, USC Schaeffer Center Usage Restrictions Credit USC Schaeffer Center License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.