Asian ginseng has been a part of Chinese medicine for over 2,000 years. The first reference to the use of Asian ginseng dates to the 1st century A.D. Ginseng is commonly used by elderly people in the Orient to improve mental and physical vitality. As each individual's response to ginseng is unique, you should be monitored for signs of possible ginseng toxicity. It is best to begin at lower doses and increase gradually. The Russian approach for long term administration is to use ginseng cyclically for a period of 15-20 days followed by a two week interval without.
Studies have been performed on standardized extracts of ginseng that demonstrate the absence of side effects and mutagenic or teratogenic effects. A number of side effects are reported, including hypertension, euphoria, nervousness, insomnia, skin eruptions, and morning diarrhea, almost always using material of unknown quality or high doses.
For largely economic purposes, the majority of ginseng in the American marketplace is derived from the lowest grade root, diluted with excipients, blended with adulterants, or totally devoid of active constituents (ginsenosides). There is currently an almost complete lack of quality control in ginseng products marketed in the United States. Independent research and published studies have clearly documented that there is a tremendous variation in the ginsenoside content of commercial preparations. In fact, the majority of products on the market contain only trace amounts of ginsenosides, and many formulations contain no ginseng at all. This has led to several problems, ranging from toxicity reactions to lack of medicinal effect. The widespread disregard for quality control in the health food industry has done much to tarnish the reputation of ginseng as well as other important botanicals.
Korean or Chinese Ginseng may prove especially effective in restoration of normal adrenal function and prevention of adrenal atrophy associated with corticosteroid administration. In rats, ginseng has been found to inhibit cortisone-induced adrenal and thymic atrophy. Ginseng could be combined with other botanicals with adrenal enhancing activity in the treatment of adrenal atrophy (exhaustion).
The standard dose for ginseng root is in the range of 4.5 to 6gm daily. However, the use of standardized ginseng preparations will ensure sufficient ginsenoside content, more consistent therapeutic results, and reduced risk of toxicity. The typical dose (taken one to three times daily) for general tonic effects should contain a saponin content of at least 25mg of ginsenoside Rgl. For example, with a high quality ginseng root powder containing 5% ginsenosides, the dose would be 500mg; for a standardized Panax ginseng extract containing a 14% saponins calculated as ginsenoside Rgl, the standard dose would be 200mg.