A CYP2C9*3/*3 genotypeIn the last 6 months experienced myocardial infarction, unstable angina, stroke, TIA, decompensated heart failure requiring hospitalization, or Class III or IV heart failurePresence of Mobitz type II second‐degree, third‐degree AV block, or sick sinus syndrome, unless patient has a functioning pacemaker. Here, CYP2C9 is linked to transient ischemic attack.