[Nature and flavor and meridians entered] Sweet, slightly cold, moist in nature; enters the lung and stomach meridians.
 [Function] Nourishes yin and moistens dryness, clears away heat, promotes fluid production and quenches thirst, and relieves cough.
 [Indications] Damage to the yin of the lungs and stomach, dryness and heat cough, dry throat and thirst, internal heat and thirst, etc.
 【Medical records】
 "Ben Jing": It is used to treat wind and heat in the body, inability to move, muscle aches and muscle knots, and other deficiencies. Long-term use can cure
 "Bie Lu": It is used to treat qi stagnation and heat in the heart and abdomen, dampness and toxicity, waist pain, cold in the penis, and eye pain and tearing at the canthus.
 "Materia Medica": It is used to treat seasonal diseases, chills and fever, replenish internal deficiencies, eliminate fatigue, fever from the body, and headaches and discomfort.
 "Supplement to Compendium of Materia Medica": It improves intelligence, regulates blood and qi, and makes people strong.
 "Si Sheng Ben Cao": tonifies the middle and replenishes Qi.
 "Rihuazi Materia Medica": relieves depression, quenches thirst, moisturizes the heart and lungs, replenishes the five kinds of fatigue and seven kinds of injuries, and treats deficiency.
 Li Gao: nourishes the liver, removes heat, and treats wind in the extremities.
 "Compendium of Materia Medica in Southern Yunnan": Nourishes qi and blood, replenishes the middle and strengthens the spleen.
 "Compendium of Materia Medica": It is used to treat spontaneous sweating, burning sensation, cold and fever due to fatigue, malaria, spleen and stomach deficiency, and urination in men.
 "Guangxi Chinese Medicine Records": Nourishes yin, clears the lungs and moistens dryness. Treats yin deficiency, sweating, dry cough and pulmonary tuberculosis.
 【Predecessors release medicine】
 "Ben Cao Jing Shu" says: "If you look at the herbs of various schools, you will know that the nature of the herb is mellow and mild, so it can be used for a long time and has endless uses. Just as this medicine can nourish the five internal organs and nourish the qi and blood, the root cause is cured and the remaining diseases are eliminated. Blood is yin and is responsible for maintaining the complexion, while qi is yang and is responsible for lightening the body. If the yin essence is insufficient, it will cause false heat; if the kidney qi is not solid, it will cause bone atrophy and waist and leg pain; if the deficiency is accompanied by fire, it will cause headaches and restlessness, eye pain and tears; if the deficiency is accompanied by heat congestion, it will cause depression and thirst; if the upper part is full and the lower part is empty, it will cause coldness in the penis, and even five kinds of fatigue and seven kinds of injuries, and the essence will dry up day by day, and it will become a symptom of deficiency. If one medicine can be used for many purposes and is effective, how can it be so if it is not to nourish the yin essence and increase the yang qi? Judging from its strengths, it is probably similar to Huangjing. It is used to treat wind-induced fever, inability to move, sprained tendons, muscle atrophy, dampness and toxins, etc., all of which are used to treat female impotence, because the two substances are mixed into one in "Ben Jing".
 "New Compendium of Materia Medica": The nature of the herb is pure, and its effect is very slow. It cannot save the emergency for a while, and it must be taken more often to be effective. It is difficult to expect a quick effect when using it in decoctions. Moreover, the herb can replenish yin, and ginseng must replenish yang, so that yin and yang can be balanced, and the effect is really amazing. Therefore, for stroke, taking herb and ginseng together will not cause paralysis; for shock and mania, taking herb and ginseng together will reduce the pain of death. Ginseng is strengthened by the herb, and the herb is encouraged by ginseng.
 "Compendium of Materia Medica" states: "Wei Rui is a warm, moist, sweet and mild product. If you make pills with honey and take several kilograms of it, it will have special effects. It is the same as taking Polygonum multiflorum and Rehmannia glutinosa. If you only add a few grams to the decoction and think it can replace ginseng and Astragalus, you are far from the truth. Generally speaking, this medicine has a slow nature and can only be effective after taking it for a long time. It is mainly used for the slow symptoms of rheumatism and asthenia. Therefore, Lu Xian took it for oral use, and Nanyang used it to treat wind-heat. "Qianjin" and "Wai Tai" also used it occasionally, but never relied on it as a heavy dose. If the symptoms of acute deficiency are caused by ginseng and Astragalus, ginseng and Astragalus must be used to restore the pulse and yang. At this time, even if you use a few kilograms of Wei Rui, it cannot match the few grams of ginseng and Astragalus. (If) because Li Shizhen said that it can replace ginseng and Astragalus, you always add it when you encounter deficiency symptoms, how can it benefit the patient?
 "Ben Cao Bian Du" says: "The herb is moist and nourishing, and it is good at nourishing the yin of the lung and spleen. However, it seems that it is not effective for the treatment of wind-dispersing and heat-dissipating diseases that are moist and sweet. It can also be used for those with wind-heat and wind-warm, which are due to deficiency. The nature, flavor and function of Polygonatum odoratum are similar to those of Polygonatum odoratum, and it can be inferred that wind-warm and wind-heat syndromes are most likely to damage the yin, and drugs that nourish the yin are also easy to hinder the evil. Only Polygonatum odoratum is sweet, mild and nourishing, and although it nourishes, it does not hinder the evil. Therefore, the ancients took this into consideration when formulating prescriptions.
 "Compendium of Materia Medica" says: Polygonatum odoratum is sweet, fatty, and soft. Although "Compendium of Materia Medica" does not mention its coldness, it treats all diseases of dryness and heat, so how cold is it (can be known). The ancients used it to treat wind-heat, because it is soft and moist and can calm the wind. It is a yin-cold substance and cannot treat external wind evil. It is most suitable for diseases caused by burning heat evil and wind caused by strong fire. Now it is only used to treat dryness and heat in the lungs and stomach, dryness of body fluids, thirst and dry throat, and it is especially effective for those with strong stomach fire, dry thirst and hunger, and those who eat a lot and get hungry easily. "Qianjin" and Zhu Gong believe that it is the main medicine for treating wind-heat, because wind diseases are caused by internal heat steaming, and wind is generated by heat. It is not an external infection, but the heat is the strongest and the body fluids are easily damaged, so Polygonatum odoratum is used as the main medicine. Zhen Quan said that if you have a restless head, add this thing, which also refers to the headache caused by rampant liver fire and wind-yang disturbance. It is sweet, cold, soft and moist, which is the wonderful effect of calming wind and clearing fire. How can it be said that it can cure all headaches? The three words "Zhu Bu Su" in Bencao Jing summarize the above sentences about violent heat. Yin'an's words are very true. But the ancients mistakenly thought that it refers to all kinds of deficiency. Therefore, Zhen Quan said that it replenishes the deficiency; Xiao Bing said that it replenishes the middle and replenishes the qi; Rihua said that it replenishes the deficiency of the five labors and seven injuries; Binhu said that it treats spleen and stomach deficiency, frequent urination and loss of semen in men, and all kinds of deficiency. He also said that it can treat deficiency, cold and heat, and all kinds of deficiency symptoms, and use ginseng and astragalus, which are neither cold nor dry, and have great effects. It is almost regarded as a magic medicine for resurrecting the dead. I don't know that the nature of softness and moistness, pure yin, is enough to kill the opportunity of life. What's more, the disease of deficiency and fatigue is the deficiency of both yin and yang. Even if the deficiency fire is raging, there is no way to directly analyze it with cold and cool. How can it be a yin, cold, greasy and stagnant quality, and replenish the middle and replenish qi? The opinions of various scholars are all due to the fault of misreading the three words "Zhu Bu Su" in Bencao Jing.