American ginseng is in fact American ginseng, just a different place of origin, but belongs to a kind of medicinal herbs, efficacy and function are not different. American ginseng is the dried root of American ginseng of the plant family Wujiaceae, which is sweet, slightly bitter and cool in nature, with the effects of tonifying qi and nourishing yin, clearing heat and generating fluids. It can be used to improve or treat deficiency of qi and yin, deficiency heat and tiredness, coughing, phlegm and blood, internal heat and thirst (internal heat accompanied by symptoms such as eating, drinking and urinating), and dry mouth and throat. The adverse effects of Radix Panax Ginseng are not clear. It is not recommended to take Radix Panax Ginseng in cases of deficiency of yang, obstruction of cold and dampness, or depletion of qi and fire, and other solid and fire-depletion cases. Radix Panax Ginseng should not be used in conjunction with Veratrum. Chinese herbal medicine is concerned about the use of evidence, so do not blindly use Chinese herbal medicine, should be used under the guidance of the doctor’s evidence.