American ginseng is not suitable for those who suffer from spleen yang deficiency (deficiency of yang qi in the spleen), cold and dampness obstruction and dampness-heat depression and fire. Radix Panax Ginseng is sweet, slightly bitter and cool in nature. It belongs to the heart, lung and kidney meridians, and has the effects of tonifying qi and nourishing yin, clearing heat and generating body fluid. It can be used for treating qi and yin deficiency, lung qi deficiency and lung yin deficiency, thirst and thirst in heat diseases with deficiency of qi and fluid. As American ginseng is cold in nature, it is not suitable for those who suffer from deficiency of middle yang and cold dampness; and those who take it for tonifying qi and nourishing yin, which makes dampness and heat in the body, or those who take this product may aggravate their condition. Precautions: American ginseng should not be used with quinoa and lycopodium; it should not be used with codeine, morphine, pethidine, phenobarbital and other western medicines. Avoid eating radish, green beans and strong alkaline food grapes, tea, wine, kelp buds and kelp during taking American ginseng. It is recommended to take American ginseng under the guidance of a doctor to avoid delaying the condition or producing adverse reactions.