Dual-anti-therapy “dual” refers to two drugs, “anti-” refers to anti-platelet aggregation, as the name implies dual-anti-therapy is, the combined application of two different mechanisms of action of antiplatelet drugs. Antiplatelet drugs are divided into three major categories, there is a class called platelet 2b3a receptor antagonists, oral preparations are unstable, only intravenous preparations, and dual-antiplatelet therapy does not include it. The first class of dual-antibody therapy is the most commonly used aspirin, the second class is ADP receptor antagonist, commonly used in clinical practice there are two representative drugs, one is clopidogrel, the other is tegretol, and now often clinical choice is the combination of aspirin and clopidogrel. The advantage of Tegretol is that it has a faster onset of action, and it can be applied to patients with acute infarction who need emergency PCI surgery, and can achieve the purpose of antiplatelet aggregation therapy as soon as possible.