Standardized extracts of
American ginseng, unlike Asian ginseng, are not available. However, dried
root powder, 1–3 grams per day in capsule or tablet form, can be used.
Some herbalists also recommend 3–5 ml of tincture three times per
day.
Are there any side effects or
interactions?
Occasional cases of insomnia
or agitation have been reported with the use of American ginseng. These
conditions are more likely, however, when caffeine-containing foods and
beverages are also being consumed.
Are there any drug
interactions?
Certain medicines may interact with American ginseng. Refer to drug
interactions for a list of those medicines.