Chinese medicine has side effects, long-term use of Chinese medicine will produce side effects of dependence, so generally drink 1 week or so need to change the prescription. For example, cassia seeds have the effect of lowering blood fat, but long-term use of cassia seeds may cause stomach discomfort. Benefit the spleen and qi and clear heat and detoxification of hay long-term use will lead to increased blood pressure. This is the reason why “medicines are three times poisonous”. Most of the Chinese medicine is natural medicine, the active ingredients are more complex, such as alkaloids, saponins, tannins, volatile oils and so on. Since they are medicines, most of them will have different degrees of side effects. Generally speaking, the side effects of traditional Chinese medicine than synthetic Western medicine to some small, but there are also some drugs with greater toxicity, such as red arsenic, white arsenic, mercury, Zanbian, Qingnian worm, red lady bug, raw garcinia cambogia and so on. Slightly less toxic are: white aconite, raw aconite, raw Chuanwu, raw Caowu, raw half-summer, strychnine, croton, raw Tiannanxing, raw Gansui, haunted goat’s flower, Tianxianzi, toadstools, earth wood turtle, Luzongo, cloud shafts, maple eggplant, maple eggplant, raw sulfur, croton, white drop Dan, poppy shells. When the use of these drugs, must be careful, such as maple before the flowers soaked in wine, oral treatment of rheumatoid arthritis, the dose is too large, often cause death by poisoning. Therefore, toxic herbs must be taken under the guidance of a physician.