[Nature and flavor and meridians entered] Bitter in nature, slightly cold; enters the heart and liver meridians.
 【Effects】It can promote blood circulation and remove blood stasis, regulate menstruation, soothe the mind and calm the heart, discharge pus, relieve pain, clear the heart and relieve restlessness, cool blood and eliminate carbuncle;
 [Indications] Chest pain, heart pain, abdominal pain, accumulation of masses, pain due to heat, restlessness and insomnia, irregular menstruation, dysmenorrhea, amenorrhea, sores, swelling and pain;
 【Usual Dosage】Oral use: decoction, 10-15g; external use appropriate amount.
 [Precautions] Do not take this medicine if you have heavy menstruation but no blood stasis. Pregnant women should take it with caution. Do not take it with vinegar, lamb liver, onion, Veratrum, or milk.
 【Medical records】
 "Ben Jing": "It treats evil qi in the heart and abdomen, rumbling in the intestines like running water, accumulation of cold and heat; it can eliminate tumors, stop restlessness and fullness, and replenish qi."
 "Wu Pu Materia Medica": "It can treat heart and stomach pain."
 "Bie Lu" says: "It nourishes blood, removes chronic diseases in the heart and abdomen, strengthens the waist and spine, and relieves leg numbness; it removes wind evil and retained heat, and long-term use is beneficial to the patient."
 Tao Hongjing: "Drinking it with wine can cure rheumatism."
 "Medicinal Properties": "It can treat weak feet, pain and numbness, and treat stomachache; it can treat abdominal pain and wheezing sound."
 "Rihuazi Materia Medica": "It nourishes the spirit and calms the mind, and clears the meridians. It treats cold and heat fatigue, joint pain, and limb paralysis; it discharges pus and relieves pain, and regenerates flesh; it breaks up old blood and replenishes new blood; it stabilizes the fetus and averts a dead fetus; it stops bleeding, metrorrhagia, and leukorrhea, regulates uneven menstruation in women, and blood evil and upset; it treats sores, scabies, goiters, swellings, toxicity, and erysipelas; it also treats headaches, red eyes, and fever, fever, and stuffiness."
 "Southern Yunnan Materia Medica": "It nourishes the heart and calms the mind, soothes the nerves and calms the heart. It treats forgetfulness, palpitations and insomnia."
 "Compendium of Materia Medica": "It promotes blood circulation, clears the pericardium, and treats hernia pain."
 【Predecessors release medicine】
 Tao Hongjing: Nowadays, many people suffer from red eyes when taking Salvia miltiorrhiza, so it should be hot in nature. Now it is said that it is slightly cold, which may be wrong.
 "Compendium of Materia Medica": Danshen, according to "The Theory of Women", Siwu Decoction can treat women's diseases regardless of whether it is before or after childbirth or how much menstrual flow, except for Danshen Powder, which has the same main treatment as it. Danshen can break up old blood, replenish new blood, stabilize the fetus, abort the dead fetus, stop metrorrhagia and stagnation, and regulate the menstruation. Its function is similar to that of Angelica, Rehmannia, Chuanxiong, and Paeonia.
 "Ben Cao Jing Shu": Danshen, "Ben Jing" tastes bitter and slightly cold; Tao Yun is hot and non-toxic. It is used to treat evil qi in the heart and abdomen, rumbling in the intestines like running water, cold and heat accumulation, breaking up symptoms and removing masses, so it is like a cold medicine; it stops irritability and fullness, replenishes qi, and "Bie Lu" nourishes blood, removes chronic diseases and qi accumulation in the heart and abdomen, stiffens the waist and spine, and numbness in the feet, removes wind evil and retained heat, and is beneficial to people after long-term use, and is definitely not a hot medicine; it should be bitter, flat and slightly warm. Enter the hand, foot Shaoyin, and foot Jueyin meridians. If the heart is weak, evil qi will invade it, causing irritability and fullness, which will become a chronic disease after a long time; if the liver is weak, heat will be generated, and the liver's qi and blood will stagnate, which will cause symptoms and masses, cold and heat accumulation; if the kidney is weak and cold and damp evil invades it, the waist and spine will be stiff, and the feet will be numb; if it enters the three meridians and removes the bitterness, then the above symptoms will be eliminated. Bitterness can relieve, and warmth can disperse, so it is also used to treat rumbling in the intestines like running water. Long-term use is beneficial to people, replenishing qi, and nourishing blood. Those produced in the north win.
 "Compendium of Materia Medica" states: Danshen is good at treating blood, removing stagnation and generating new blood, regulating menstruation and smoothing the meridians. It is used to treat symptoms of vomiting, epistaxis, stranguria, and metrorrhagia in men and women, or disharmony between Chong and Ren meridians and poor fetal movement, or disorder of blood chamber after childbirth, or stagnation of blood and pain in all joints, or amenorrhea and lower abdominal pain, or stagnation of liver and spleen and irregular cold and heat, or accumulation of symptoms and masses and distension and stuffiness, or hernia and irregularity, or paralysis of the feet and knees and heavy pain and difficulty in walking, or retention of qi in the heart and abdomen and intestinal rumbling, or blood vessels and red pain in the eyes. Therefore, "Ming Theory" uses Danshen as one thing, but it has the function of four things. It can replenish blood and generate blood, and its merits are better than those of Radix Rehmanniae and Radix Rehmanniae, regulate blood and restrain blood, its strength is comparable to that of Radix Paeoniae Rubra, it can remove stasis and generate new blood, and its nature is twice as hard as that of Rhizoma Chuanxiong. It can be often used to treat all kinds of women's diseases, whether before or after pregnancy.
 "Ben Jing Feng Yuan": Danshen "Ben Jing" treats evil qi in the heart and abdomen, rumbling in the intestines like running water and other diseases, all of which are signs of blood stasis and transformation into water. It can stop irritability and replenish qi, and the stagnation will be gone and the irritability will be cured, and the positive qi will be restored.
 "Compendium of Materia Medica" states that Danshen can enter the pericardium and dissolve blood stasis, which is the full effect of Danshen. However, there are also discussions that it can promote new birth and stabilize pregnancy, regulate menstruation and relieve restlessness, nourish the mind and stabilize the spirit, and all wind arthralgia, metrorrhagia, abdominal masses, red eyes, hernia pain, sores, scabies, swelling and pain, etc., all of which are due to its blood stasis removal, so it can be seen that all diseases can be cured, but it is not true that it can promote new birth and stabilize pregnancy, nourish the mind and stabilize the spirit.
 "Chongqingtang Essays": Danshen descends and circulates blood, and is suitable for those with hot and stagnant blood, so it is an important medicine for regulating menstruation and postpartum. If menstruation is early or there is no blood, and menstruation is stopped, and there is too little blood to nourish the fetus and the fetus is not at peace, and if the blood is flowing smoothly after childbirth, all should not be confused by the theory that it has the same effect as the four ingredients, and abuse it because it contains ginseng. Even if it has the same effect as the four ingredients, the Siwu Decoction is originally a medicine for treating blood diseases, not a blood-tonifying prescription, and Mr. Shi Wan has already distinguished this. As for the theory of tonifying the heart, it is not like wolfberry and longan, which can really tonify the deficiency of the heart. The heart stores the spirit and controls the blood. If the heart fire is too active, the spirit will be restless. Danshen clears the fire in the blood, so it can calm the spirit and stabilize the mind; if the mind is at peace, the heart will benefit. It is used for all warm and hot evils that are transmitted to the nutrient division, and this is also the meaning. If the evil is in the qi division and is used incorrectly, it will lead the evil into the nutrient division, so you must be careful.
 "Bencao Zhengyi": Salvia miltiorrhiza is called slightly cold in "Ben Jing". Tao Hongjing suspected it was wrong, and Miao Zhongchun also doubted it. It was not until Zhang Shiwan that it was changed to slightly warm.