With the alternation of the seasons of summer, fall and winter and spring, many middle-aged and elderly patients with cardiovascular disease began to visit various hospitals, repeat one thing: the requirement of “infusion” to dredge the blood vessels, in exchange for half a year’s peace of mind. I do not know when, this twice a year, “infusion therapy” has become popular nationwide, become a lot of middle-aged and elderly patients of the firm belief; moreover, become a lot of grass-roots hospitals to recruit patients of the winning formula. Twice a year infusion is really so magical, can prevent cardiovascular and cerebrovascular disease does not attack half a year? After analyzing, we can know. From the efficacy point of view, the common intravenous route to dredge the blood vessels of the drugs are generally anti-platelet coagulation, dilation of cardiovascular arteries, improve microcirculation of the function of the drug, such as Western medicine Chuanxiongzine, Climax, Tianmuin, prostaglandins, edaravone, butyl phthalide, etc., Chinese medicine preparation compound salvia, bitter saucer, Shu Xuning, lampblossom pigment, and so on. These drugs are not different in nature from other oral drugs except that the route of administration is infusion. Therefore, the efficacy of these preparations is also comparable to that of oral medications, except that they work faster and have an irreplaceable role in rapidly controlling symptoms and preventing progression of the disease for those with acute onset of the disease. But for the development of chronic diseases, these infusion preparations do not show its advantages, the use of their treatment is “anti-aircraft gun to hit mosquitoes” is too small to use. Secondly, these preparations belong to the drug, can not be separated from the characteristics of the drug, that is, all have a clearance half-life. The so-called clearance half-life (referred to as half-life) is a drug into the organism after metabolism in the blood concentration to reach half the time required, generally after a few half-life after the drug is no longer effective, which is why patients need to take medication several times a day for the sake of. In the infusion preparation, there is also the problem of half-life, such as the western medicine preparation Chuanxiongxiongzine half-life of 1.69 hours, Tianmuazu half-life of 4.44 hours, Clineau half-life of 30 minutes, edaravone half-life of 2.3 hours, none of them can reach half a year; Chinese medicinal preparations Compound Salvia divinorum half-life of 15 hours, Shuxu Xuning half-life of 2.17 hours, Lanchidonin injection of 21.6 hours, and none of them can maintain half a year. The half-life of the Chinese medicine compound Danshen is 15 hours, the half-life of Shu Xuning is 2.17 hours, and the half-life of Lanxessin injection is 21.6 hours. So it seems that the so-called “effective” can only manage the period of infusion. In order to ensure that the disease does not develop for half a year, it is necessary to continuously infuse fluids every day to realize it. The claim that infusion twice a year is not only not magical, but not reliable at all, is a “beautiful cake”. It is a “beautiful cake”, which can only fulfill the patient’s good wishes, but is not feasible in practice. From the safety point of view, long-term repeated intravenous infusion on the blood vessels of the stimulation of damage is relatively large, because the needle piercing and liquid stimulation will cause damage to the blood vessel wall, easy to cause phlebitis, serious can cause venous thrombosis, secondary cause new vascular disease. For patients with heart disease and heart failure, too much infusion too fast will increase blood volume and heart burden, causing limb swelling or pulmonary edema. Furthermore, intravenous drugs directly into the blood, without the buffer of the gastrointestinal tract, if once an allergic reaction occurs will be rapid and serious, can be directly life-threatening. From this point of view, intravenous infusion is a double-edged sword, if used properly it can save lives, but on the contrary, it is harmful to health. Therefore, we advocate the correct preventive treatment method, i.e., taking oral medication every day. Any of the authoritative Chinese medical guidelines such as “Coronary Heart Disease Prevention and Treatment Guidelines”, “Stroke Prevention and Treatment Guidelines”, “Hypertension Prevention and Treatment Guidelines”, “Diabetes Prevention and Treatment Guidelines”, etc. also provide guidelines for the prevention and treatment of diabetes. Diabetes prevention and treatment guidelines”, etc. are also recommended oral drug treatment, not listed in the intravenous infusion, which should be able to clearly answer this question. In fact, the right way to prevent and treat cardiovascular disease is to take the right oral medication every day.