American ginseng is effective for the elderly with deficiency of qi and yin, internal heat and thirst, but it should not be taken for a long time, and it is recommended to follow the doctor’s instructions. American ginseng is the dried root of American ginseng of the plant family Wujiaceae. It is sweet, slightly bitter, cool in nature, and belongs to the heart, lung and kidney meridians. It has the effect of tonifying qi and nourishing yin, clearing heat and generating fluids, and is used for the treatment of qi deficiency and yin deficiency, deficiency heat and tiredness, coughing, sputum and blood, internal heat and thirst (internal fever accompanied by symptoms such as overeating, drinking, and urinating), and dry mouth and throat, etc. The adverse effects of the drug are not clear. The adverse effects of this drug are not clear. Note that this product is cold in nature and can injure yang and help dampness, so it should not be taken by people with weakened yang in the middle and cold dampness in the stomach. This product should not be used together with veratrum. Although American ginseng is effective for the elderly with deficiency of qi and yin and internal heat and thirst, long-term consumption may cause adverse reactions. If there is a need for medication, it is recommended to use it under the guidance of a professional physician to identify the symptoms, and not to use it blindly on one’s own.