Cassia seeds are the dried mature seeds of the annual herb cassia or small cassia, family Leguminosae. Bitter, slightly cold, has the effect of clearing the liver and eyes, laxative, hypotensive and lipid-lowering. Therefore by many hypertensive patients “favored”, like to buy the cassia seeds home directly to make water for tea. In fact, this is very unscientific, sometimes not only can not lower blood pressure, and even cause some more serious adverse reactions. For cassia seeds to lower blood pressure, there are many misconceptions among the people. Myth 1: All hypertensive patients can take cassia seeds to lower blood pressure. The cassia seeds belong to the liver meridian and have the effect of clearing liver fire, brightening eyes and lowering blood pressure. It is mainly suitable for hyperactive liver Yang type hypertension, but not for any type of hypertension, such as kidney essence deficiency type, qi and blood deficiency type hypertension taking cassia seeds will not achieve the efficacy of lowering blood pressure. Therefore, before choosing cassia seeds, hypertensive patients should first distinguish the type of disease, belonging to the hyperactive liver Yang type hypertension and accompanied by constipation is most suitable, mainly manifested as red eyes and astringent pain, dark eyes, headache and dizziness, irritability, dry stools and difficult to solve. Myth 2: cassia seeds is a Chinese medicine, there are no side effects, can be taken without worry. Many people think that cassia seed is a dual-use Chinese medicine, there are no adverse reactions, can be taken without worry. In fact, cassia seeds are cold in nature and contain laxative ingredients such as rhubarb phenol and rhubarbin, which are not suitable for patients with a cold spleen and stomach and spleen deficiency diarrhea. Recent studies have found that mingko has the effect of promoting uterine contraction. Therefore, pregnant women with gestational hypertension should never use cassia seeds to lower their blood pressure. To avoid inducing premature birth. In addition, women to achieve the purpose of weight loss, long-term use of cassia seeds easy to trigger menstrual disorders, and even lead to endometrial abnormalities. Myth 3: Hypertensive patients can take cassia seeds for a long time and in large quantities. Many hypertensive patients are accustomed to the cassia seeds infusion water, made of health tea long-term drinking, as a way to reduce and control blood pressure. Even think that drinking cassia seed tea will not need to take antihypertensive drugs, in fact, it is wrong to do so. Although cassia seeds have a lipid-lowering, antihypertensive effect, but can not be taken in large quantities, generally controlled within 10 grams a day can be divided into several drinks, you can take a gradual approach, starting from 3 to 4 grams, until increased to about 10 grams. Cassia seeds should not be taken for a long time, otherwise it is easy to damage the spleen and stomach, 10 to 15 days of continuous use, the longest not more than 1 month to “take a break”. Long-term use can also cause intestinal lesions, but also easy to cause “drug-dependent constipation”, the incidence of about 9%, mostly seen in the early stage of taking drugs, but does not affect the continued use of drugs, can disappear on their own. If convenient, you can also cassia seeds and has the effect of antipyretic lipid chrysanthemum, hawthorn, etc. together with the infusion, not only better taste, but also to double the effect of lipid reduction. Of course, this is only an adjunctive therapy for hypertension and should not be used to reduce or stop antihypertensive drugs on its own.