As people become more health conscious and health-conscious, there are always patients, especially middle-aged and elderly patients with arterial cerebral stenosis or cerebral infarction, who come to the clinic every year during the autumn and winter seasons asking whether it is time for them to receive infusions and blood vessel unblocking drugs. They ask what is the best drug to infuse, how long to infuse, and so on. Commonly used medications for blood vessel dredging include Danshen, Hematoxylin, Ginkgo biloba and other herbal preparations. Danshen, also known as red ginseng and blood ginseng, has a bitter taste and slightly cold nature, cooling the blood, eliminating carbuncles, nourishing the blood and calming the mind, activating the blood, inhibiting platelet aggregation, lowering blood lipids, lowering blood sugar, and improving the immunity of the body. The main component of Blood Cypress is the total saponin of Panax notoginseng, which is sweet and slightly bitter in taste and warm in nature, and belongs to the liver and stomach meridian, and plays the role of resolving blood stasis and stopping bleeding, activating blood circulation and relieving pain. Ginkgo, also known as white fruit, is sweet, bitter and warm, astringent and astringent. Modern research shows that it has the effect of anti-thrombosis and improving microcirculation, and can resist lipid peroxidation and slow down aging, while the causes of cerebral vascular stenosis commonly include atherosclerosis, vasculitis, vascular entrapment, smog, etc. Among them, atherosclerosis is a common cause of arterial stenosis in middle-aged and old people, and its mechanism is damage to cerebrovascular intima cells, lipid deposition, fibrous tissue proliferation, and local vascular wall proliferation, Fibrous tissue proliferation, local vessel wall thickening, lumen narrowing or even blockage, hypertension, diabetes mellitus, hyperlipidemia, smoking and alcoholism are risk factors for atherosclerosis, and others such as obesity, lack of exercise, advanced age and family history can also cause atherosclerosis. Through the above, we can see that the relevant as the above three components have a certain degree of antithrombotic effect, but the effect of preventing cerebral thrombosis and cerebral infarction by short time infusion is really beyond the power. So it is also necessary to anti-atherosclerosis, anti-platelet aggregation, related aspirin, statin and other related drugs, must be taken on time according to the doctor’s instructions.