Bu Zhong Yi Qi Wan (Bu Zhong Yi Qi Pian, Bu Zhong Yi Qi Tang, QiVive, is a highly regarded ancient Chinese herbal formula made from a combination of Astragalus and Ginseng. Today, it is widely used to replenish the body's Qi and to promote physical strength. In traditional Chinese medicine, Qi is the principle of vital energy. A diminished Qi can be shown as fatigue, tiredness, shortness of breath, or organ prolapse. Qi weakness can be caused by age, stress, overwork, and chronic illnesses.