The daily dosage of Radix Panax Ginseng for adults is 3~6 grams, which should be taken according to the doctor’s prescription. American ginseng is a traditional Chinese medicine, sweet, slightly bitter, cool in nature, belongs to the lung, heart, spleen and kidney meridians; it has the effect of tonifying qi and nourishing yin, clearing heat and generating fluids, and is used as the main treatment for qi and yin deficiency, lung qi deficiency, lung yin deficiency, thirst, deficiency of qi in febrile diseases, and thirst due to injury of fluids, and the dosage of American ginseng for adults per day is 3~6 grams. Radix Panax Ginseng is cold in nature and may cause loss of appetite, abdominal pain, diarrhea, etc. It is not suitable for cold spleen and stomach (spleen and stomach weakness and cold); overdose may cause insomnia, irritability, anxiety, etc.; caution should be exercised in cases of deficiency of middle yang, cold and dampness obstruction, and dampness-heat and heat depression and fire. Ginseng should not be used in conjunction with quassia. If there is a need for medication, it is recommended to use it under the guidance of a professional physician and avoid self-medication to avoid adverse consequences.