CYP2C19 and ischemic stroke: CYP2C19*2 (G681A and rs4244285), CYP2C19*3 (G363A and rs4986893), CYP2C19*17 (C806T and rs12248560), and ABCB1 (C3435T and rs1045642) carriers with ischemic stroke are particularly sensitive to clopidogrel ADRs [55].