Prasugrel (Effient) is more likely to be given to lower-risk heart disease patients undergoing percutaneous coronary intervention (PCI) compared to clopidogrel, according to a new study. Results of the PROMETHEUS study, which examined how the two drugs are used across academic medical centers in the United States, were presented as a late-breaking clinical trial at the Society for Cardiovascular Angiography and Interventions (SCAI) 2015 Scientific Sessions in San Diego.