American ginseng is not the bigger the better the efficacy. The efficacy of American ginseng is related to the origin of the Chinese medicine, the growing environment of the herbs, the storage and the concoction of the Chinese medicine, and there is no exact correlation with the size of American ginseng.
Radix Panax Ginseng comes from the root of ginseng plant, which has the effect of tonifying qi and nourishing yin, clearing heat and generating fluids, and is useful in the treatment of dry mouth and throat caused by qi deficiency and yin deficiency, deficiency of heat and fatigue, and internal heat and thirst (internal fever accompanied by symptoms such as overeating and excessive drinking and urination).
The adverse effects of Radix Panax Ginseng are not clear, and it should not be used together with Veratrum. It is contraindicated in cases where there is deficiency of yang in the middle, obstruction of cold and dampness (cold and dampness blocking the spleen and stomach in the central part of the body), and Qi depression and fire, etc..
Clinical efficacy of Chinese medicine can not be judged according to its size, should be based on the characteristics of the medicinal properties of Chinese herbs, as well as the individual’s condition, urgency, severity of symptoms related.
If you need to use medication, you should go to the hospital for a clear diagnosis and use the medication after identification by a Chinese doctor, rather than blindly using the medication on your own, so as not to cause adverse effects on the body.