The correct way to take American ginseng is usually to take it internally in decoction, but the specific method of taking should be under the guidance of a doctor. American ginseng has the effect of tonifying qi and nourishing yin, clearing heat and generating fluids. Radix Panax Ginseng is sweet, slightly bitter and cool in nature, and belongs to the heart, lung and kidney meridians. It can be used to treat deficiency of qi and yin, coughing, phlegm and blood, internal heat and thirst (internal heat accompanied by symptoms such as eating, drinking and urinating), deficiency heat and fatigue, and dryness of the mouth and throat, etc. It is not suitable to be taken with quassia. Radix Panax Ginseng should not be used with quassia; it is contraindicated in cases of deficiency of yang, obstruction of cold and dampness, and Qi stagnation and fire, etc. It is also contraindicated in cases of allergy to Radix Panax Ginseng. If you need to use American ginseng, it is recommended to consult a doctor in advance and use it under the doctor’s guidance.