The difference between Radix Panax Ginseng and Astragalus is that Radix Panax Ginseng favors clear tonic, which can tonify kidney, spleen and heart qi in addition to lung qi. Astragalus, on the other hand, is warm, tonifying the lung and spleen qi. American ginseng is cool in nature, sweet and bitter in taste, and belongs to the lung, heart, spleen and kidney meridians. So it can tonify lung, spleen, kidney and heart qi. It is weaker than ginseng in tonifying kidney qi, and its cool nature can clear fire and nourish yin. It can be used in treating thirst, sweating, heartburn, body heat, thin and weak pulse in the late stage of fever, when the fluid has been injured. It can be used with licorice to tonify heart qi, and with yam and ginseng to tonify spleen qi. Astragalus is warm in nature, sweet in flavor, and belongs to the spleen and lung meridians, so it can tonify lung qi and spleen qi, and is especially good at tonifying spleen qi. When the spleen qi is deficient, it can be used together with Codonopsis pilosulae and Atractylodes macrocephala to tonify qi and strengthen the spleen, such as tonifying the middle and benefiting the qi. This medicine can both tonify spleen qi and diuretics (facilitating urination and eliminating edema), making it an essential medicine for qi deficiency and edema. When the lung qi is weak, there are often coughs and shortness of breath, etc. It is more effective when used in conjunction with Fengyonghua and almonds. Please use under the guidance of a physician.