Ginseng is a natural steroid. It can cause a thinning of the membrane in the nose which leads to nose bleeds, if taken in too high a dosage. It can also cause hemorraging in pregnant women.
It will give you energy, and is a very good natural supplement if taken in the proper amount. 200 mg was too strong for me. 100mg is just fine. There are also 5 differnt types.
Canadian, American, Korean, Chinese and Siberian. All have different effects.