[Nature and flavor and meridians entered] Sweet in taste, slightly warm in nature; enters the spleen and lung meridians.
 [Functions and indications] Tonify Qi and strengthen the exterior, expel toxins and pus, promote diuresis, and promote tissue regeneration. Used for Qi deficiency and fatigue, chronic diarrhea and prolapse of the anus, spontaneous sweating, edema, uterine prolapse, proteinuria in chronic nephritis, diabetes, and wounds that do not heal for a long time.
 [Regular dosage] 10-30 grams, large dose 30-60 grams
 【Precautions】Kidney disease is caused by yin deficiency, dampness and heat toxicity. Do not eat Astragalus when you have a cold or during menstruation. Women should not eat it 2 weeks after giving birth. Please consult a doctor or pharmacist before using the above medicinal food.
 [Contraindications] Contraindicated: Patients with strong external pathogenic factors, stagnation of qi and dampness, internal stagnation of food, yin deficiency and hyperactivity of yang, or those with early stage of carbuncle or severe heat toxicity after ulceration should not take Beiqi. The usual dosage of Beiqi is 9-30 grams. Beiqi raises yang and helps fire, and is slightly warm in nature. It is not suitable for patients with strong pathogenic factors, no sweating, and hyperactivity of yang with heat toxicity.
 【Medical records】
 "Annotations to the Classic of Materia Medica": "It is harmful to tortoise shells."
 Xu Zhicai's "Medicine Pairs" says: "It is incompatible with tortoise shell and white mulberry bark."
 "Medical Introduction? Materia Medica": "It is forbidden to use in those with strong dark qi, and it is also forbidden to use in those with strong exterior evil. It should also be used sparingly in those with yin deficiency." "Fear of windproof."
 "Compendium of Materia Medica" states: "It can strengthen the exterior, so do not use it if there are exterior evils; it can help qi, so do not use it if qi is strong; it can fill the interior, so do not use it if there is chest qi stagnation, or stomach stagnation; it can replenish yang, so do not use it if there is yang excess and yin deficiency; it can replenish yang, so do not use it if there is excessive heat in the upper part of the body and coldness in the lower part of the body; do not use it if the patient is prone to anger or liver qi is not harmonious; it is forbidden to use it if there is severe heat in the blood of smallpox."
 "Pharmaceutical Chemistry" states: "If there is excess Qi, the external evil is strong, the pores are full, and the triple burner fire is agitated, it is advisable to stop using it. As for stroke, paralysis of the hands and feet, phlegm obstruction and Qi stagnation, it should not be added from beginning to end."
 "New Compendium of Materia Medica" states: "It should not be used by people suffering from bone steaming, tuberculosis and fullness in the middle of the body."
 "Compendium of Materia Medica" says: "It is resistant to Veratrum, and afraid of Penis Enlargement and Saposhnikovia Divaricata ."
 【Predecessors release medicine】
 "New Compendium of Materia Medica": Astragalus is sweet in taste, slightly warm in qi, thin in qi and strong in taste, can rise or fall, is the yang among yang, non-toxic. Specializes in replenishing qi. Enters the meridians of hand Taiyin, foot Taiyin, and hand Shaoyin. It has many functions, and its unique effect is especially in replenishing blood. Astragalus is a holy medicine for replenishing qi, how can it replenish blood alone ? Qi is invisible, but blood is visible. Visible things cannot grow quickly, and they must be produced by invisible qi. Astragalus is used in angelica, and it can help it to produce blood. Angelica can produce blood by itself, so why does it need Astragalus? I don't know that blood medicine produces blood slowly, while qi medicine produces blood quickly. Moreover, if the medicines of qi and blood are combined and the same, blood will grow quickly with qi, so why doubt it?
 Ni Zhumo: "Huangqi nourishes the lungs and strengthens the spleen, strengthens the defense system and restrains sweat, and drives away wind and poison. Therefore, people with yang deficiency often sweat spontaneously, which is due to the deficiency of the exterior and the loose pores. Huangqi can strengthen the defense system and restrain sweat. In the case of typhoid fever, the evil sweat does not come out after the exterior is exposed, which is due to the deficiency of the interior and the lack of positive energy. Huangqi can replenish body fluids and help sweat. In the case of evil wind, the blood vessels are affected and the hands and feet are not able to move. Huangqi can nourish the tendons and bones. In the case of carbuncle, pus and blood are ruptured inside, and the yang qi is weak and cannot be restrained, Huangqi can grow muscles. In addition, yin sores cannot break out and the yang qi is weak and cannot be cured, Huangqi can grow muscles." ("Compendium of Materia Medica")
 Zhang Jingyue: "(Huangqi), because of its light taste, is focused on the qi and reaches the surface, so it can replenish the original yang, fill the pores, treat fatigue, and grow muscles. It can promote sweating in those with qi deficiency and difficulty in sweating, and stop sweating in those with loose surface and excessive sweating. It can stop bleeding and stranguria because the qi is strengthened and the bleeding stops naturally; therefore, it is said that blood loss and qi benefit. It can treat diarrhea, dysentery and turbidity because the qi is strengthened and the sunken are eliminated naturally, so it is said that the sunken are lifted." ("Compendium of Materia Medica")
 Jia Suoxue: "Huangqi is warm in nature and can raise Yang. It tastes sweet and light. When stir-fried with honey, it can warm the middle. It mainly strengthens the spleen. Therefore, for internal injuries and qi deficiency, it is used with ginseng to replenish the middle and benefit the qi. It can treat spleen deficiency diarrhea, malaria and dysentery for a long time, vomiting, bleeding from the nose and intestines, and pale pox after long-term blood loss. It mainly nourishes the lungs, so it is used to relieve the deficiency of the exterior and defense. It is often used with ginseng to restrain sweat and consolidate the exterior, and treat spontaneous sweating and night sweats. After the poison is broken, it can close the mouth and regenerate muscles. For pox sores with pus and carbuncles that have not healed for a long time, the poison comes out from the bones, so it must be stir-fried with salt. For those with pox deficiency that does not break out, it is first to help the qi on the exterior, and it is also suitable to use it raw." ("Pharmaceutical Chemistry")
 Zhang Shiwan: "(Huangqi) enters the lungs and consolidates the superficial weakness and spontaneous sweating, and enters the spleen and supports the ulcers. The first part of the Ben Jing says that it can treat long-term carbuncle, discharge pus and relieve pain, and then it says that it can treat severe wind leprosy, five hemorrhoids and fistulas, all of which are used raw to relieve the heat of Wei Qi. Although it is warm and nourishing, it can regulate blood vessels and circulate in the meridians, and it can not hinder stagnation. It is a medicine for treating Qi deficiency, night sweats, spontaneous sweating, and skin pain. It is a medicine for the skin surface. It is a medicine for treating hemoptysis and softening the spleen and stomach. It is a medicine for treating typhoid fever, weak pulse, insufficient kidney vital energy, and infants who are susceptible to wind evil, fever and spontaneous sweating. All of them are roasted to strengthen the deficiency of Wei Qi. It is a medicine for the upper, middle, lower, internal and external triple burner, which is the so-called "tonifying deficiency" in the Ben Jing. For example, Baoyuan Decoction is used to treat spleen and lung deficiency heat in smallpox, and Danggui Buxue Decoction is used to treat blood deficiency and fever, both of which are holy medicines." (Ben Jing Fengyuan)
 Zhang Bingcheng: "(Huangqi) is good at nourishing the body, benefiting the body's defense system, warming the flesh, nourishing the skin, making the Yang Qi harmonious and flowing, naturally producing body fluids and blood, so it is a holy medicine for surgeons, because it can make the Yingwei Qi and blood harmonious, and naturally there will be no stagnation." ("Compendium of Materia Medica")
 Zhang Shanlei: "(Huangqi) nourishes the middle earth, warms the spleen and stomach, and is most suitable for those with weak middle qi, weak spleen and earth, and sinking clear qi. Its skin is thick and strong, and its strength is in the skin, so it can directly reach the skin and muscles of the human body, protect the yang, and replenish the surface. This is its specialty, so it is the most magical medicine for all superficial deficiency diseases." "For those who are hungry, full, overworked, have sunken spleen yang, are weak and tired, and have long-term malaria and spleen deficiency, and clear qi does not rise, and cold and heat do not stop, give Dongyuan's Buzhong Yiqi Decoction, which is effective immediately. Huangqi is used as an adjuvant to ginseng and shu, and Sheng and Chai are used to lift it, so the spleen yang is restored, and the great qi of the middle earth is mediated." ("Compendium of Materia Medica")
 Li Dongyuan: "Huangqi nourishes the three burners and strengthens the defensive qi. It has the same function as cinnamon, but it is sweet and mild, not spicy and hot. But cinnamon can open the blood vessels, break up blood and strengthen the defensive qi, while Huangqi can replenish qi. Huangqi, ginseng and licorice are the three holy medicines for removing dryness and heat and muscle heat. Once the spleen and stomach are weak, the lung qi will be exhausted first. Huangqi must be used to warm the flesh, benefit the skin and fur, strengthen the pores, and prevent sweating, so as to replenish the original qi and nourish the three burners." (Quoted from "Compendium of Materia Medica")
 Wang Haogu: "(Huangqi) is used to treat night sweats and spontaneous sweating due to qi deficiency, which is a medicine for the skin surface. It also treats skin pain, so it is a medicine for the surface. It also treats hemoptysis and softens the spleen and stomach, so it is a medicine for the middle region. It also treats colds with weak pulse on the radial side, and replenishes the kidney's vital energy, so it is a medicine for the interior. It is a medicine for the upper, middle, lower, internal and external three burners." (Tangye Bencao)
 Zou Shu: "(Huangqi) goes straight to the middle earth and runs through the three burners, so it can replenish the middle qi internally, which is what the "Ben Jing" calls "replenishing deficiency" and the "Bie Lu" calls "replenishing the deficiency of men's lungs and stomach; it can also replenish qi for weight loss caused by five kinds of fatigue; it can move the nutritive qi in the middle, which is what the "Ben Jing" calls "treating carbuncle, long-term ulcer, draining pus and relieving pain, leprosy, and the "Ming Yi Bie Lu" calls "expelling bad blood from the five internal organs"; it can move the defensive qi downward, which is what the "Ben Jing" calls "treating the five hemorrhoids, fistulas, and fistulas" and the "Ming Yi Bie Lu" calls "wind evil qi in women's genitals, abdominal pain and diarrhea." "Huangqi has one source and three branches, dredges the root of the three burners, and benefits the nutritive and defensive qi, so all obstructions between the nutritive and defensive qi are cleared. It is the so-called source of clear water and self-cleansing." ("Ben Jing Shu Zheng")