CONCOMITANT MEDICATION Use of nonsteroidal anti-inflammatory drug (NSAID), aminoglycocide, cyclosporin, cysplatin will not be allowed within 48 hours prior to PCI and throughout the study duration. Metformin should be withheld 48 hours before and 48 hours after PCI. ACE inhibitors can be continued at the discretion of the doctor in charge. Concomitant medications or treatments received during the study must be reported on the concomitant medication case report form provided.