In the Song of Pregnancy Medicine Taboo by Li Gao of Yuan Dynasty, 39 medicines are proposed: Qingniangzi – Wuqing, pungent, warm in nature and highly toxic, with the function of attacking poison and expelling blood stasis, should not be taken by pregnant women. Spotted cypress – pungent, hot, with great toxicity, has the function of breaking blood, eliminating obstruction, and eroding sores, and contains spotted cypress, which has foaming effect, so pregnant women should not take it. Leech, gadfly – It is a blood-breaking, meridian-breaking and stasis-removing product. Leech contains leechin, which can block the action of thrombin on fibrinogen and prevent blood coagulation. Gadfly, bitter, cold, poisonous, “The Essence of Pinhui” states that it should not be taken in pregnancy, and aborts the fetus if taken. Aconite (Chuan Wu, Cao Wu), Radix Aconiti, Tianxiong – There are two kinds of Aconite, Chuan Wu is its mother root, Cao Wu is the root of Northern Aconite, the concoction of the root and side root of Aconite is Radix Aconiti. Tianxiong is the sole root of Aconite. All of the above contain aconitine, which is highly toxic. There is a historical saying that “Aconite aborts fetus as the longest of all medicines”, so pregnant women should be prohibited or used with caution. Hooked (wild kudzu) – bitter, pungent and warm, with a large poison, containing hooked pigment, etc. can cause respiratory paralysis, pregnant women in particular should be prohibited. Mercury – pungent and cold, toxic, dissociated mercury ions can combine with hydrophobic groups, interfering with cellular metabolism to produce toxicity, “aborting fetus” as recorded in “Ben Jing”. Croton – Contains croton oil and croton toxin, which have strong diarrhea-causing effects. 20 drops of croton oil has been reported to cause death. Niubizi is a blood-breaking and menstrual stimulant, which has been recorded in herbs for generations. Modern pharmacology has shown that it does have the effect of inducing labor and lowering the fetus, so it should be avoided by pregnant women. Job’s Tears – It is generally considered to be a mild and calm medicine, and is not listed in the Pharmacopoeia and Chinese medicine books as a contraindication for pregnancy, but it is recorded in the Classic of Materia Medica, and some scholars believe that it should be used with caution in cases of habitual abortion and fetal disturbance, and should be contraindicated. Further verification is needed. Centipede is a pungent, warm, poisonous product containing histamine-like substances and hemolytic proteins, which is fierce and can dry out the blood. Therefore, pregnant women should not take it. Sanguine – flat in nature, pungent and bitter in taste. It has the function of breaking blood and moving qi, eliminating accumulation and relieving pain. Coriander – cold, pungent, bitter, toxic. Contains corianderin which can inhibit the movement of the isolated intestine and uterus and make the uterus contract. It has been used clinically in ethanolic solutions to induce labor in mid-pregnancy and is therefore contraindicated in pregnant women. Ochre – Cold, bitter. Although the herb is said to be non-toxic, it has been determined that it contains arsenic salts above 1/100,000, and in animal tests, death occurs after 14-60g. Clinical decoction with academic dosage is less than abortion, but it should be used with caution when the fetus is not solid. Musk – is an orifice opener, obscurantist, energizer, and disperser of blood stasis. Pharmacological experiments have shown that it has a significant excitatory effect on both isolated and in situ uterus, the latter being more sensitive, and pregnancy being more sensitive than non-pregnancy. The “other record” records “treatment of obstructed labor, abortion,” so pregnant women are prohibited to take. Euphorbia – divided into red Euphorbia, Beijing Euphorbia, the more widely used is red Euphorbia, generations of herbal records is Beijing Euphorbia, for the harsh and poisonous products, pharmacology shows that its aqueous extracts have excitatory effect on the isolated uterus. The “theory of medicinal properties” said that it is “good at treating blood stasis, can abort the fetus and pregnancy”, so pregnant women should be avoided. Cicada molasses is cool in nature, sweet and salty in taste, and non-toxic. The pharmacology has shown that it has no effect on fetus and pregnancy, and no fetal damage has been reported in clinical use, nor has it been recorded in the Materia Medica or the 90th edition of the Pharmacopoeia. Xionghuang (female yellow) – Pungent, warm, toxic. It contains arsenic sulfide, which can be decomposed into arsenic trioxide when exposed to heat. It is “pungent” to disperse stagnation and “warm” to pass qi and blood, and is mostly used externally in clinical practice. Water nitrate, fire nitrate – “nitrate” since the Jin and Tang, there is no definite opinion, since the “Kai Bao Ben Cao” “to nitrate for the ground cream refined into mannitrate, horse tooth nitrate, that is, water nitrate, there is a way to break all the schools. The “Compendium” “Shen Nong dumped listed park nitrate, that is, water nitrate also, there are three …… ancient formula has a phase generation of the said”. This refers to the tooth nitrate, mannite, not only refers to water nitrate, fire nitrate, should refer to water fire two nitrate more reasonable, regardless of park nitrate, saltpeter, are broken blood, attacking the next product, pregnant women should avoid. Mudanpi – cool in nature, pungent and bitter in taste. The pharmacology shows that its hot infusion has an excitatory effect on the uterus of animals. According to Dian Nan Ben Cao, it “breaks blood, moves blood and eliminates blood stasis” and should be used with caution by pregnant women. Cinnamon – (cinnamon bark) is a very hot product, with the function of tonifying fire and helping Yang, especially good at warming the blood vessels. It is a very pungent and hot product, which can disturb the fetus and help fire and hurt Yin. It is called “abortifacient” in the book of “Other Records”, so it should be avoided by pregnant women. Sambucus nigra – bitter, slightly cold, cooling the blood, stopping bleeding, clearing the liver, and dipping the fire, non-toxic. There is no record of abortion in ancient or modern literature. It has not been clinically considered as a contraindication for pregnancy, so it should be released from the contraindication. However, its fruit is said to be “abortifacient” and has anti-fertility effects. Altair – Cold and bitter in taste. Poisonous. It is a product that is harsh and expels water. Saponaria – warm in nature, pungent in taste, slightly toxic. Pharmacology shows that the animal uterus has an excitatory effect, more than one dose will make people vomit and diarrhea, a large number of doses can cause death, so pregnant women should not. Radix et Rhizoma – Although pungent, warm, toxic, but by ginger, alum system, the toxicity is greatly reduced and enhanced the effect of stopping the hey. Pharmacology shows that at lower concentrations are excitatory, high concentrations have inhibitory effects. The common amount of clinical, plus before cooking, toxicity greatly reduced, this effect is difficult to present, so the clinical has not seen the report of the uterus, ancient imitation Chinese medicine literature does not have this record, so should be lifted contraindication. Tiannanxing – wet nature, spraying water Bitter, pungent, toxic. The roots, stems and leaves contain caustic toxins, which can cause asphyxia and injure yin and abort fetus when taken, so it should be used with caution by pregnant women. Tongcao – In the “Ben Cao Tu Jing” and to be Tong Yi do not confuse, the song decision refers to Tongcao is now Tong Tu Mu, not Mu Tong. It is cold in nature and sweet in taste, and has the function of promoting birth, lowering breast milk and lowering cell. Ben Cao Jing Shu …… should not be taken by pregnant women, so pregnant women should be avoided. Qu Mai – Cold in nature and bitter in taste. It has the function of diuretic, laxative, blood-breaking and menstrual flow. The Ben Jing says that “it breaks the fetus and aborts the child, and closes the blood”; therefore, it should be avoided by pregnant women. Ginger is a very hot and pungent product. When pregnant, the mother’s body is full of yin and yang, so it is hot. Peach kernel – bitter in taste, flat in nature, has the function of breaking blood and moving blood stasis, and its pharmacological effects indicate that it has anti-blood clotting and hemolytic effects. Therefore, pregnant women should use it with caution. Mouton – has the function of dipping fire and moving water, breaking the blood and promoting birth, “Rihua Zi Ben Cao” said “promote birth under the cell, women’s blood closed ……” so pregnant women should be used with caution. Scammoniac – warm, salty, bitter, pungent, toxic. For eliminating accumulation and softening the firm, break the stasis and disperse the product. The Tang Materia Medica is said to be “broken knot blood, rotten fetus. Therefore, it is contraindicated for pregnant women. Dried lacquer – pungent, warm and poisonous, is a product that breaks down blood stasis and opens up menstruation. Sheng Ji Zong Lu says, “It is used for treating the incontinence of cellular clothing and the inaction of bad blood. Therefore, it is contraindicated for pregnant women. Crab claw nail – has the function of breaking blood, eliminating stagnation and aborting fetus. Ground bile – cold in nature, pungent in taste, toxic. It is toxic. It is used to attack poison and remove blood stasis. It is said in the Classic to “break up the mass and abort the fetus.” Therefore, it should be contraindicated for pregnant women. White foxglove – Cold in nature, sweet in taste, and non-toxic, with the function of clearing heat and diuresis, cooling the blood and stopping bleeding. Although it is a diaphoretic, it is calm, sweet and cold, and produces fluid, which is diuretic without hurting the fluid, and has not been reported to harm the fetus in the herbal medicine and modern Chinese medicine literature.