Similar to Korean ginseng. Siberian ginseng is a general tonic for people who are severely exhausted, suffering debilitating conditions such as ME, or udergoing a period of intense physical and/or emotional stress. In Russia, studies have recommended that it be used more by older people - this fits in very well with the traditional usage of Korean ginseng too.Long-term usage is best conducted under professional supervision. Avoid in high blood pressure, pregnancy and lacation. Best avoided by hyperactive, nervous individuals. Seek advice if suffering from a heart condition and steroid therapy. Some authorities advise avoiding coffee and alcohol whilst taking ginseng.