Sexual taste is bitter and slightly cold. Heart tropism and liver meridian. Efficacy: promoting blood circulation, regulating menstruation, removing blood stasis, relieving pain, cooling blood, eliminating carbuncle, clearing away heart fire, nourishing blood and calming nerves. Indications: Irregular menstruation, amenorrhea, dysmenorrhea, accumulation of abdominal pain, stabbing pain in the chest and abdomen, pain due to heat arthralgia, sore and swelling, vexation and insomnia; Hepatosplenomegaly, angina pectoris. It can be used for chest pain, hypochondriac pain, rheumatic arthralgia, lump in abdominal mass, sore and sore, traumatic stress, irregular menstruation, amenorrhea dysmenorrhea, postpartum stasis pain, etc. It has a good effect on chest and rib pain, lump in abdominal mass, irregular menstruation and amenorrhea pain, and is often used in combination with Chuanxiong. In the treatment of chest and abdomen pain, which belongs to qi stagnation and blood stasis, it is often combined with Amomum villosum and Sandalwood. It can be used for treating epidemic febrile diseases, fever entering blood, rash, dizziness and irritability. It is often used with fresh rehmannia root, buffalo horn and Scrophularia root. Used for palpitation and insomnia. It is often combined with Ziziphus jujuba seed and Semen Platycladi. Usage and dosage: decocted, 9 ~15g. Promoting blood circulation and removing blood stasis should be roasted with wine. Pay attention to anti-veratrum. Pregnant women should use it with caution. [Adverse reactions]1) Some patients will have stomach pain, loss of appetite, dry mouth and pharynx, nausea and vomiting, which is related to the fact that Salvia miltiorrhiza can inhibit the secretion of digestive juice. It is advisable to stop taking drugs, and oral drugs such as weishuping and prubencin can be taken, and atropine can be injected subcutaneously in severe cases. 2) Individual patients with advanced schistosomiasis hepatosplenomegaly will suffer from upper gastrointestinal bleeding after taking large doses of Salvia miltiorrhiza. Danshen should be stopped and given hemostatic and vitamins. 3) Salvia Miltiorrhiza can cause allergic reactions, manifested as itchy skin, rash, urticaria, some accompanied by chest tightness, dyspnea, even aversion to cold, dizziness, nausea and vomiting, irritability, then pale face, cold sweat on limbs, decreased blood pressure, and even fainting and shock. Adrenaline, dexamethasone, phenamine and other antiallergic drugs should be injected immediately, and Shengmai Powder should be used for conditioning.