Plavix is a registered trademark used to treat heart disease. The FDA issued a warning in 2010 recognizing the need for CYP2C19 testing when prescribing Plavix to help determine treatment for patients undergoing certain procedures. Carriers of certain CYP2C19 mutations have a higher risk of major cardiac events after a procedure and increased healthcare costs or death. A genetic test is available that can provide results in one hour and a comprehensive report on genetic factors that affect certain medications.